Finding the Third Proportional to 63,986.50 and 137,784.50

Step by Step Solution

1. Step 1: Write the proportion equation
   63,986.50 : 137,784.50 = 137,784.50 : x
2. Step 2: Convert to fraction form
   63,986.50/137,784.50 = 137,784.50/x
3. Step 3: Cross multiply
   63,986.50x = 137,784.50 × 137,784.50
4. Step 4: Simplify right side
   63,986.50x = 18,984,568,440.25
5. Step 5: Solve for x
   x = 18,984,568,440.25/63,986.50
6. Step 6: Final answer
   x = 296,696.47