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Finding the Third Proportional to 18,778 and 35,191

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Solution

The third proportional to 18,778 and 35,191 is: 65,949.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,778 : 35,191 = 35,191 : x
  2. Step 2: Convert to fraction form
    18,778/35,191 = 35,191/x
  3. Step 3: Cross multiply
    18,778x = 35,191 × 35,191
  4. Step 4: Simplify right side
    18,778x = 1,238,406,481
  5. Step 5: Solve for x
    x = 1,238,406,481/18,778
  6. Step 6: Final answer
    x = 65,949.86

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Why These Related Problems?

These problems maintain the same ratio (1.87) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.