Finding the Third Proportional to 2,221,886 and 3,318,269

Step by Step Solution

1. Step 1: Write the proportion equation
   2,221,886 : 3,318,269 = 3,318,269 : x
2. Step 2: Convert to fraction form
   2,221,886/3,318,269 = 3,318,269/x
3. Step 3: Cross multiply
   2,221,886x = 3,318,269 × 3,318,269
4. Step 4: Simplify right side
   2,221,886x = 11,010,909,156,361
5. Step 5: Solve for x
   x = 11,010,909,156,361/2,221,886
6. Step 6: Final answer
   x = 4,955,658.91