Finding the Third Proportional to 59,110 and 90,432.50

Step by Step Solution

1. Step 1: Write the proportion equation
   59,110 : 90,432.50 = 90,432.50 : x
2. Step 2: Convert to fraction form
   59,110/90,432.50 = 90,432.50/x
3. Step 3: Cross multiply
   59,110x = 90,432.50 × 90,432.50
4. Step 4: Simplify right side
   59,110x = 8,178,037,056.25
5. Step 5: Solve for x
   x = 8,178,037,056.25/59,110
6. Step 6: Final answer
   x = 138,352.85