Finding the Third Proportional to 63,913.50 and 140,674.50

Step by Step Solution

1. Step 1: Write the proportion equation
   63,913.50 : 140,674.50 = 140,674.50 : x
2. Step 2: Convert to fraction form
   63,913.50/140,674.50 = 140,674.50/x
3. Step 3: Cross multiply
   63,913.50x = 140,674.50 × 140,674.50
4. Step 4: Simplify right side
   63,913.50x = 19,789,314,950.25
5. Step 5: Solve for x
   x = 19,789,314,950.25/63,913.50
6. Step 6: Final answer
   x = 309,626.53