Finding the Third Proportional to 42,261.75 and 91,570.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,261.75 : 91,570.50 = 91,570.50 : x
2. Step 2: Convert to fraction form
   42,261.75/91,570.50 = 91,570.50/x
3. Step 3: Cross multiply
   42,261.75x = 91,570.50 × 91,570.50
4. Step 4: Simplify right side
   42,261.75x = 8,385,156,470.25
5. Step 5: Solve for x
   x = 8,385,156,470.25/42,261.75
6. Step 6: Final answer
   x = 198,410.06