Finding the Third Proportional to 42,513 and 89,635.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,513 : 89,635.50 = 89,635.50 : x
2. Step 2: Convert to fraction form
   42,513/89,635.50 = 89,635.50/x
3. Step 3: Cross multiply
   42,513x = 89,635.50 × 89,635.50
4. Step 4: Simplify right side
   42,513x = 8,034,522,860.25
5. Step 5: Solve for x
   x = 8,034,522,860.25/42,513
6. Step 6: Final answer
   x = 188,989.79