Finding the Third Proportional to 151,552 and 318,818

Step by Step Solution

1. Step 1: Write the proportion equation
   151,552 : 318,818 = 318,818 : x
2. Step 2: Convert to fraction form
   151,552/318,818 = 318,818/x
3. Step 3: Cross multiply
   151,552x = 318,818 × 318,818
4. Step 4: Simplify right side
   151,552x = 101,644,917,124
5. Step 5: Solve for x
   x = 101,644,917,124/151,552
6. Step 6: Final answer
   x = 670,693.34