Finding the Third Proportional to 2,221,888 and 3,318,272

Step by Step Solution

1. Step 1: Write the proportion equation
   2,221,888 : 3,318,272 = 3,318,272 : x
2. Step 2: Convert to fraction form
   2,221,888/3,318,272 = 3,318,272/x
3. Step 3: Cross multiply
   2,221,888x = 3,318,272 × 3,318,272
4. Step 4: Simplify right side
   2,221,888x = 11,010,929,065,984
5. Step 5: Solve for x
   x = 11,010,929,065,984/2,221,888
6. Step 6: Final answer
   x = 4,955,663.41