Finding the Third Proportional to 799,200 and 1,672,280

Step by Step Solution

1. Step 1: Write the proportion equation
   799,200 : 1,672,280 = 1,672,280 : x
2. Step 2: Convert to fraction form
   799,200/1,672,280 = 1,672,280/x
3. Step 3: Cross multiply
   799,200x = 1,672,280 × 1,672,280
4. Step 4: Simplify right side
   799,200x = 2,796,520,398,400
5. Step 5: Solve for x
   x = 2,796,520,398,400/799,200
6. Step 6: Final answer
   x = 3,499,149.65