Finding the Third Proportional to 59,511.50 and 81,604.50

Step by Step Solution

1. Step 1: Write the proportion equation
   59,511.50 : 81,604.50 = 81,604.50 : x
2. Step 2: Convert to fraction form
   59,511.50/81,604.50 = 81,604.50/x
3. Step 3: Cross multiply
   59,511.50x = 81,604.50 × 81,604.50
4. Step 4: Simplify right side
   59,511.50x = 6,659,294,420.25
5. Step 5: Solve for x
   x = 6,659,294,420.25/59,511.50
6. Step 6: Final answer
   x = 111,899.29