Finding the Third Proportional to 60,531.50 and 140,663.50

Step by Step Solution

1. Step 1: Write the proportion equation
   60,531.50 : 140,663.50 = 140,663.50 : x
2. Step 2: Convert to fraction form
   60,531.50/140,663.50 = 140,663.50/x
3. Step 3: Cross multiply
   60,531.50x = 140,663.50 × 140,663.50
4. Step 4: Simplify right side
   60,531.50x = 19,786,220,232.25
5. Step 5: Solve for x
   x = 19,786,220,232.25/60,531.50
6. Step 6: Final answer
   x = 326,874.77