Finding the Third Proportional to 1,387,212 and 2,981,352

Step by Step Solution

1. Step 1: Write the proportion equation
   1,387,212 : 2,981,352 = 2,981,352 : x
2. Step 2: Convert to fraction form
   1,387,212/2,981,352 = 2,981,352/x
3. Step 3: Cross multiply
   1,387,212x = 2,981,352 × 2,981,352
4. Step 4: Simplify right side
   1,387,212x = 8,888,459,747,904
5. Step 5: Solve for x
   x = 8,888,459,747,904/1,387,212
6. Step 6: Final answer
   x = 6,407,427.09