Finding the Third Proportional to 5,421,862 and 7,228,341

Step by Step Solution

1. Step 1: Write the proportion equation
   5,421,862 : 7,228,341 = 7,228,341 : x
2. Step 2: Convert to fraction form
   5,421,862/7,228,341 = 7,228,341/x
3. Step 3: Cross multiply
   5,421,862x = 7,228,341 × 7,228,341
4. Step 4: Simplify right side
   5,421,862x = 52,248,913,612,281
5. Step 5: Solve for x
   x = 52,248,913,612,281/5,421,862
6. Step 6: Final answer
   x = 9,636,710.34