Finding the Third Proportional to 7,266,222 and 17,128,521

Step by Step Solution

1. Step 1: Write the proportion equation
   7,266,222 : 17,128,521 = 17,128,521 : x
2. Step 2: Convert to fraction form
   7,266,222/17,128,521 = 17,128,521/x
3. Step 3: Cross multiply
   7,266,222x = 17,128,521 × 17,128,521
4. Step 4: Simplify right side
   7,266,222x = 293,386,231,647,441
5. Step 5: Solve for x
   x = 293,386,231,647,441/7,266,222
6. Step 6: Final answer
   x = 40,376,722.82