Finding the Third Proportional to 63,500.63 and 139,959.98

Step by Step Solution

1. Step 1: Write the proportion equation
   63,500.63 : 139,959.98 = 139,959.98 : x
2. Step 2: Convert to fraction form
   63,500.63/139,959.98 = 139,959.98/x
3. Step 3: Cross multiply
   63,500.63x = 139,959.98 × 139,959.98
4. Step 4: Simplify right side
   63,500.63x = 19,588,797,226.25
5. Step 5: Solve for x
   x = 19,588,797,226.25/63,500.63
6. Step 6: Final answer
   x = 308,481.96