Finding the Third Proportional to 42,356.50 and 88,221.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,356.50 : 88,221.50 = 88,221.50 : x
2. Step 2: Convert to fraction form
   42,356.50/88,221.50 = 88,221.50/x
3. Step 3: Cross multiply
   42,356.50x = 88,221.50 × 88,221.50
4. Step 4: Simplify right side
   42,356.50x = 7,783,033,062.25
5. Step 5: Solve for x
   x = 7,783,033,062.25/42,356.50
6. Step 6: Final answer
   x = 183,750.62