Finding the Third Proportional to 998,418 and 2,154,300

Step by Step Solution

1. Step 1: Write the proportion equation
   998,418 : 2,154,300 = 2,154,300 : x
2. Step 2: Convert to fraction form
   998,418/2,154,300 = 2,154,300/x
3. Step 3: Cross multiply
   998,418x = 2,154,300 × 2,154,300
4. Step 4: Simplify right side
   998,418x = 4,641,008,490,000
5. Step 5: Solve for x
   x = 4,641,008,490,000/998,418
6. Step 6: Final answer
   x = 4,648,362.20