Finding the Third Proportional to 154,110 and 333,490

Step by Step Solution

1. Step 1: Write the proportion equation
   154,110 : 333,490 = 333,490 : x
2. Step 2: Convert to fraction form
   154,110/333,490 = 333,490/x
3. Step 3: Cross multiply
   154,110x = 333,490 × 333,490
4. Step 4: Simplify right side
   154,110x = 111,215,580,100
5. Step 5: Solve for x
   x = 111,215,580,100/154,110
6. Step 6: Final answer
   x = 721,663.62