Finding the Third Proportional to 63,136 and 140,285.50

Step by Step Solution

1. Step 1: Write the proportion equation
   63,136 : 140,285.50 = 140,285.50 : x
2. Step 2: Convert to fraction form
   63,136/140,285.50 = 140,285.50/x
3. Step 3: Cross multiply
   63,136x = 140,285.50 × 140,285.50
4. Step 4: Simplify right side
   63,136x = 19,680,021,510.25
5. Step 5: Solve for x
   x = 19,680,021,510.25/63,136
6. Step 6: Final answer
   x = 311,708.40