Finding the Third Proportional to 155,515.50 and 333,142.50

Step by Step Solution

1. Step 1: Write the proportion equation
   155,515.50 : 333,142.50 = 333,142.50 : x
2. Step 2: Convert to fraction form
   155,515.50/333,142.50 = 333,142.50/x
3. Step 3: Cross multiply
   155,515.50x = 333,142.50 × 333,142.50
4. Step 4: Simplify right side
   155,515.50x = 110,983,925,306.25
5. Step 5: Solve for x
   x = 110,983,925,306.25/155,515.50
6. Step 6: Final answer
   x = 713,651.86