Finding the Third Proportional to 154,881 and 318,099.38

Step by Step Solution

1. Step 1: Write the proportion equation
   154,881 : 318,099.38 = 318,099.38 : x
2. Step 2: Convert to fraction form
   154,881/318,099.38 = 318,099.38/x
3. Step 3: Cross multiply
   154,881x = 318,099.38 × 318,099.38
4. Step 4: Simplify right side
   154,881x = 101,187,212,375.39
5. Step 5: Solve for x
   x = 101,187,212,375.39/154,881
6. Step 6: Final answer
   x = 653,322.31