Finding the Third Proportional to 162,280 and 354,084

Step by Step Solution

1. Step 1: Write the proportion equation
   162,280 : 354,084 = 354,084 : x
2. Step 2: Convert to fraction form
   162,280/354,084 = 354,084/x
3. Step 3: Cross multiply
   162,280x = 354,084 × 354,084
4. Step 4: Simplify right side
   162,280x = 125,375,479,056
5. Step 5: Solve for x
   x = 125,375,479,056/162,280
6. Step 6: Final answer
   x = 772,587.37