Finding the Third Proportional to 31,505.63 and 68,083.88

Step by Step Solution

1. Step 1: Write the proportion equation
   31,505.63 : 68,083.88 = 68,083.88 : x
2. Step 2: Convert to fraction form
   31,505.63/68,083.88 = 68,083.88/x
3. Step 3: Cross multiply
   31,505.63x = 68,083.88 × 68,083.88
4. Step 4: Simplify right side
   31,505.63x = 4,635,414,035.02
5. Step 5: Solve for x
   x = 4,635,414,035.02/31,505.63
6. Step 6: Final answer
   x = 147,129.73