Finding the Third Proportional to 30,664.50 and 62,490.38

Step by Step Solution

1. Step 1: Write the proportion equation
   30,664.50 : 62,490.38 = 62,490.38 : x
2. Step 2: Convert to fraction form
   30,664.50/62,490.38 = 62,490.38/x
3. Step 3: Cross multiply
   30,664.50x = 62,490.38 × 62,490.38
4. Step 4: Simplify right side
   30,664.50x = 3,905,046,967.64
5. Step 5: Solve for x
   x = 3,905,046,967.64/30,664.50
6. Step 6: Final answer
   x = 127,347.49