Finding the Third Proportional to 31,809.38 and 69,151.50

Step by Step Solution

1. Step 1: Write the proportion equation
   31,809.38 : 69,151.50 = 69,151.50 : x
2. Step 2: Convert to fraction form
   31,809.38/69,151.50 = 69,151.50/x
3. Step 3: Cross multiply
   31,809.38x = 69,151.50 × 69,151.50
4. Step 4: Simplify right side
   31,809.38x = 4,781,929,952.25
5. Step 5: Solve for x
   x = 4,781,929,952.25/31,809.38
6. Step 6: Final answer
   x = 150,330.84