Finding the Third Proportional to 58,603.64 and 87,519.23

Step by Step Solution

1. Step 1: Write the proportion equation
   58,603.64 : 87,519.23 = 87,519.23 : x
2. Step 2: Convert to fraction form
   58,603.64/87,519.23 = 87,519.23/x
3. Step 3: Cross multiply
   58,603.64x = 87,519.23 × 87,519.23
4. Step 4: Simplify right side
   58,603.64x = 7,659,616,385.59
5. Step 5: Solve for x
   x = 7,659,616,385.59/58,603.64
6. Step 6: Final answer
   x = 130,702.06