Finding the Third Proportional to 59,060.39 and 90,783.28

Step by Step Solution

1. Step 1: Write the proportion equation
   59,060.39 : 90,783.28 = 90,783.28 : x
2. Step 2: Convert to fraction form
   59,060.39/90,783.28 = 90,783.28/x
3. Step 3: Cross multiply
   59,060.39x = 90,783.28 × 90,783.28
4. Step 4: Simplify right side
   59,060.39x = 8,241,604,154.52
5. Step 5: Solve for x
   x = 8,241,604,154.52/59,060.39
6. Step 6: Final answer
   x = 139,545.37