Finding the Third Proportional to 57,517.31 and 123,031.13

Step by Step Solution

1. Step 1: Write the proportion equation
   57,517.31 : 123,031.13 = 123,031.13 : x
2. Step 2: Convert to fraction form
   57,517.31/123,031.13 = 123,031.13/x
3. Step 3: Cross multiply
   57,517.31x = 123,031.13 × 123,031.13
4. Step 4: Simplify right side
   57,517.31x = 15,136,657,718.77
5. Step 5: Solve for x
   x = 15,136,657,718.77/57,517.31
6. Step 6: Final answer
   x = 263,166.99