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Finding the Third Proportional to 59,711 and 128,266

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Solution

The third proportional to 59,711 and 128,266 is: 275,529.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,711 : 128,266 = 128,266 : x
  2. Step 2: Convert to fraction form
    59,711/128,266 = 128,266/x
  3. Step 3: Cross multiply
    59,711x = 128,266 × 128,266
  4. Step 4: Simplify right side
    59,711x = 16,452,166,756
  5. Step 5: Solve for x
    x = 16,452,166,756/59,711
  6. Step 6: Final answer
    x = 275,529.92

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.