Finding the Third Proportional to 2,290,466 and 5,174,789

Step by Step Solution

1. Step 1: Write the proportion equation
   2,290,466 : 5,174,789 = 5,174,789 : x
2. Step 2: Convert to fraction form
   2,290,466/5,174,789 = 5,174,789/x
3. Step 3: Cross multiply
   2,290,466x = 5,174,789 × 5,174,789
4. Step 4: Simplify right side
   2,290,466x = 26,778,441,194,521
5. Step 5: Solve for x
   x = 26,778,441,194,521/2,290,466
6. Step 6: Final answer
   x = 11,691,263.35