Finding the Third Proportional to 155,560.50 and 336,030

Step by Step Solution

1. Step 1: Write the proportion equation
   155,560.50 : 336,030 = 336,030 : x
2. Step 2: Convert to fraction form
   155,560.50/336,030 = 336,030/x
3. Step 3: Cross multiply
   155,560.50x = 336,030 × 336,030
4. Step 4: Simplify right side
   155,560.50x = 112,916,160,900
5. Step 5: Solve for x
   x = 112,916,160,900/155,560.50
6. Step 6: Final answer
   x = 725,866.53