Finding the Third Proportional to 63,811.50 and 137,368.50

Step by Step Solution

1. Step 1: Write the proportion equation
   63,811.50 : 137,368.50 = 137,368.50 : x
2. Step 2: Convert to fraction form
   63,811.50/137,368.50 = 137,368.50/x
3. Step 3: Cross multiply
   63,811.50x = 137,368.50 × 137,368.50
4. Step 4: Simplify right side
   63,811.50x = 18,870,104,792.25
5. Step 5: Solve for x
   x = 18,870,104,792.25/63,811.50
6. Step 6: Final answer
   x = 295,716.36