Finding the Third Proportional to 42,309 and 63,470.25

Step by Step Solution

1. Step 1: Write the proportion equation
   42,309 : 63,470.25 = 63,470.25 : x
2. Step 2: Convert to fraction form
   42,309/63,470.25 = 63,470.25/x
3. Step 3: Cross multiply
   42,309x = 63,470.25 × 63,470.25
4. Step 4: Simplify right side
   42,309x = 4,028,472,635.06
5. Step 5: Solve for x
   x = 4,028,472,635.06/42,309
6. Step 6: Final answer
   x = 95,215.50