Finding the Third Proportional to 69,331.50 and 141,948

Step by Step Solution

1. Step 1: Write the proportion equation
   69,331.50 : 141,948 = 141,948 : x
2. Step 2: Convert to fraction form
   69,331.50/141,948 = 141,948/x
3. Step 3: Cross multiply
   69,331.50x = 141,948 × 141,948
4. Step 4: Simplify right side
   69,331.50x = 20,149,234,704
5. Step 5: Solve for x
   x = 20,149,234,704/69,331.50
6. Step 6: Final answer
   x = 290,621.65