Finding the Third Proportional to 61,528.50 and 80,790.75

Step by Step Solution

1. Step 1: Write the proportion equation
   61,528.50 : 80,790.75 = 80,790.75 : x
2. Step 2: Convert to fraction form
   61,528.50/80,790.75 = 80,790.75/x
3. Step 3: Cross multiply
   61,528.50x = 80,790.75 × 80,790.75
4. Step 4: Simplify right side
   61,528.50x = 6,527,145,285.56
5. Step 5: Solve for x
   x = 6,527,145,285.56/61,528.50
6. Step 6: Final answer
   x = 106,083.28