Finding the Third Proportional to 63,915.50 and 139,366.75

Step by Step Solution

1. Step 1: Write the proportion equation
   63,915.50 : 139,366.75 = 139,366.75 : x
2. Step 2: Convert to fraction form
   63,915.50/139,366.75 = 139,366.75/x
3. Step 3: Cross multiply
   63,915.50x = 139,366.75 × 139,366.75
4. Step 4: Simplify right side
   63,915.50x = 19,423,091,005.56
5. Step 5: Solve for x
   x = 19,423,091,005.56/63,915.50
6. Step 6: Final answer
   x = 303,887.02