Finding the Third Proportional to 59,480.75 and 87,577.50

Step by Step Solution

1. Step 1: Write the proportion equation
   59,480.75 : 87,577.50 = 87,577.50 : x
2. Step 2: Convert to fraction form
   59,480.75/87,577.50 = 87,577.50/x
3. Step 3: Cross multiply
   59,480.75x = 87,577.50 × 87,577.50
4. Step 4: Simplify right side
   59,480.75x = 7,669,818,506.25
5. Step 5: Solve for x
   x = 7,669,818,506.25/59,480.75
6. Step 6: Final answer
   x = 128,946.23