Finding the Third Proportional to 42,938 and 63,121.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,938 : 63,121.50 = 63,121.50 : x
2. Step 2: Convert to fraction form
   42,938/63,121.50 = 63,121.50/x
3. Step 3: Cross multiply
   42,938x = 63,121.50 × 63,121.50
4. Step 4: Simplify right side
   42,938x = 3,984,323,762.25
5. Step 5: Solve for x
   x = 3,984,323,762.25/42,938
6. Step 6: Final answer
   x = 92,792.49