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Finding the Third Proportional to 266,710 and 629,590

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Solution

The third proportional to 266,710 and 629,590 is: 1,486,196.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,710 : 629,590 = 629,590 : x
  2. Step 2: Convert to fraction form
    266,710/629,590 = 629,590/x
  3. Step 3: Cross multiply
    266,710x = 629,590 × 629,590
  4. Step 4: Simplify right side
    266,710x = 396,383,568,100
  5. Step 5: Solve for x
    x = 396,383,568,100/266,710
  6. Step 6: Final answer
    x = 1,486,196.87

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Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.