Finding the Third Proportional to 59,110.50 and 90,433.25

Step by Step Solution

1. Step 1: Write the proportion equation
   59,110.50 : 90,433.25 = 90,433.25 : x
2. Step 2: Convert to fraction form
   59,110.50/90,433.25 = 90,433.25/x
3. Step 3: Cross multiply
   59,110.50x = 90,433.25 × 90,433.25
4. Step 4: Simplify right side
   59,110.50x = 8,178,172,705.56
5. Step 5: Solve for x
   x = 8,178,172,705.56/59,110.50
6. Step 6: Final answer
   x = 138,353.98