Finding the Third Proportional to 152,781.75 and 336,019.50

Step by Step Solution

1. Step 1: Write the proportion equation
   152,781.75 : 336,019.50 = 336,019.50 : x
2. Step 2: Convert to fraction form
   152,781.75/336,019.50 = 336,019.50/x
3. Step 3: Cross multiply
   152,781.75x = 336,019.50 × 336,019.50
4. Step 4: Simplify right side
   152,781.75x = 112,909,104,380.25
5. Step 5: Solve for x
   x = 112,909,104,380.25/152,781.75
6. Step 6: Final answer
   x = 739,022.20