Finding the Third Proportional to 63,466.35 and 139,387.71

Step by Step Solution

1. Step 1: Write the proportion equation
   63,466.35 : 139,387.71 = 139,387.71 : x
2. Step 2: Convert to fraction form
   63,466.35/139,387.71 = 139,387.71/x
3. Step 3: Cross multiply
   63,466.35x = 139,387.71 × 139,387.71
4. Step 4: Simplify right side
   63,466.35x = 19,428,933,960.40
5. Step 5: Solve for x
   x = 19,428,933,960.40/63,466.35
6. Step 6: Final answer
   x = 306,129.70