Finding the Third Proportional to 42,243.50 and 59,059.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,243.50 : 59,059.50 = 59,059.50 : x
2. Step 2: Convert to fraction form
   42,243.50/59,059.50 = 59,059.50/x
3. Step 3: Cross multiply
   42,243.50x = 59,059.50 × 59,059.50
4. Step 4: Simplify right side
   42,243.50x = 3,488,024,540.25
5. Step 5: Solve for x
   x = 3,488,024,540.25/42,243.50
6. Step 6: Final answer
   x = 82,569.50