Finding the Third Proportional to 63,471.38 and 139,165.88

Step by Step Solution

1. Step 1: Write the proportion equation
   63,471.38 : 139,165.88 = 139,165.88 : x
2. Step 2: Convert to fraction form
   63,471.38/139,165.88 = 139,165.88/x
3. Step 3: Cross multiply
   63,471.38x = 139,165.88 × 139,165.88
4. Step 4: Simplify right side
   63,471.38x = 19,367,140,764.52
5. Step 5: Solve for x
   x = 19,367,140,764.52/63,471.38
6. Step 6: Final answer
   x = 305,131.89