Finding the Third Proportional to 42,114.50 and 90,789.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,114.50 : 90,789.50 = 90,789.50 : x
2. Step 2: Convert to fraction form
   42,114.50/90,789.50 = 90,789.50/x
3. Step 3: Cross multiply
   42,114.50x = 90,789.50 × 90,789.50
4. Step 4: Simplify right side
   42,114.50x = 8,242,733,310.25
5. Step 5: Solve for x
   x = 8,242,733,310.25/42,114.50
6. Step 6: Final answer
   x = 195,721.98