Finding the Third Proportional to 59,512.50 and 78,981.75

Step by Step Solution

1. Step 1: Write the proportion equation
   59,512.50 : 78,981.75 = 78,981.75 : x
2. Step 2: Convert to fraction form
   59,512.50/78,981.75 = 78,981.75/x
3. Step 3: Cross multiply
   59,512.50x = 78,981.75 × 78,981.75
4. Step 4: Simplify right side
   59,512.50x = 6,238,116,833.06
5. Step 5: Solve for x
   x = 6,238,116,833.06/59,512.50
6. Step 6: Final answer
   x = 104,820.28