Finding the Third Proportional to 63,137 and 140,287.50

Step by Step Solution

1. Step 1: Write the proportion equation
   63,137 : 140,287.50 = 140,287.50 : x
2. Step 2: Convert to fraction form
   63,137/140,287.50 = 140,287.50/x
3. Step 3: Cross multiply
   63,137x = 140,287.50 × 140,287.50
4. Step 4: Simplify right side
   63,137x = 19,680,582,656.25
5. Step 5: Solve for x
   x = 19,680,582,656.25/63,137
6. Step 6: Final answer
   x = 311,712.35