Finding the Third Proportional to 42,751.50 and 66,358.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,751.50 : 66,358.50 = 66,358.50 : x
2. Step 2: Convert to fraction form
   42,751.50/66,358.50 = 66,358.50/x
3. Step 3: Cross multiply
   42,751.50x = 66,358.50 × 66,358.50
4. Step 4: Simplify right side
   42,751.50x = 4,403,450,522.25
5. Step 5: Solve for x
   x = 4,403,450,522.25/42,751.50
6. Step 6: Final answer
   x = 103,001.08