Finding the Third Proportional to 63,079.75 and 137,769.50

Step by Step Solution

1. Step 1: Write the proportion equation
   63,079.75 : 137,769.50 = 137,769.50 : x
2. Step 2: Convert to fraction form
   63,079.75/137,769.50 = 137,769.50/x
3. Step 3: Cross multiply
   63,079.75x = 137,769.50 × 137,769.50
4. Step 4: Simplify right side
   63,079.75x = 18,980,435,130.25
5. Step 5: Solve for x
   x = 18,980,435,130.25/63,079.75
6. Step 6: Final answer
   x = 300,895.85