Finding the Third Proportional to 42,909.75 and 91,352.81

Step by Step Solution

1. Step 1: Write the proportion equation
   42,909.75 : 91,352.81 = 91,352.81 : x
2. Step 2: Convert to fraction form
   42,909.75/91,352.81 = 91,352.81/x
3. Step 3: Cross multiply
   42,909.75x = 91,352.81 × 91,352.81
4. Step 4: Simplify right side
   42,909.75x = 8,345,336,351.66
5. Step 5: Solve for x
   x = 8,345,336,351.66/42,909.75
6. Step 6: Final answer
   x = 194,485.78