Finding the Third Proportional to 69,076.50 and 144,409.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,076.50 : 144,409.50 = 144,409.50 : x
2. Step 2: Convert to fraction form
   69,076.50/144,409.50 = 144,409.50/x
3. Step 3: Cross multiply
   69,076.50x = 144,409.50 × 144,409.50
4. Step 4: Simplify right side
   69,076.50x = 20,854,103,690.25
5. Step 5: Solve for x
   x = 20,854,103,690.25/69,076.50
6. Step 6: Final answer
   x = 301,898.67