Finding the Third Proportional to 5,421,496 and 7,227,668

Step by Step Solution

1. Step 1: Write the proportion equation
   5,421,496 : 7,227,668 = 7,227,668 : x
2. Step 2: Convert to fraction form
   5,421,496/7,227,668 = 7,227,668/x
3. Step 3: Cross multiply
   5,421,496x = 7,227,668 × 7,227,668
4. Step 4: Simplify right side
   5,421,496x = 52,239,184,718,224
5. Step 5: Solve for x
   x = 52,239,184,718,224/5,421,496
6. Step 6: Final answer
   x = 9,635,566.40