Finding the Third Proportional to 2,398,212 and 5,138,292

Step by Step Solution

1. Step 1: Write the proportion equation
   2,398,212 : 5,138,292 = 5,138,292 : x
2. Step 2: Convert to fraction form
   2,398,212/5,138,292 = 5,138,292/x
3. Step 3: Cross multiply
   2,398,212x = 5,138,292 × 5,138,292
4. Step 4: Simplify right side
   2,398,212x = 26,402,044,677,264
5. Step 5: Solve for x
   x = 26,402,044,677,264/2,398,212
6. Step 6: Final answer
   x = 11,009,053.69