Finding the Third Proportional to 842,280 and 1,842,020

Step by Step Solution

1. Step 1: Write the proportion equation
   842,280 : 1,842,020 = 1,842,020 : x
2. Step 2: Convert to fraction form
   842,280/1,842,020 = 1,842,020/x
3. Step 3: Cross multiply
   842,280x = 1,842,020 × 1,842,020
4. Step 4: Simplify right side
   842,280x = 3,393,037,680,400
5. Step 5: Solve for x
   x = 3,393,037,680,400/842,280
6. Step 6: Final answer
   x = 4,028,396.35