Finding the Third Proportional to 69,558.75 and 152,239.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,558.75 : 152,239.50 = 152,239.50 : x
2. Step 2: Convert to fraction form
   69,558.75/152,239.50 = 152,239.50/x
3. Step 3: Cross multiply
   69,558.75x = 152,239.50 × 152,239.50
4. Step 4: Simplify right side
   69,558.75x = 23,176,865,360.25
5. Step 5: Solve for x
   x = 23,176,865,360.25/69,558.75
6. Step 6: Final answer
   x = 333,198.42