Finding the Third Proportional to 3,981,312 and 5,363,712

Step by Step Solution

1. Step 1: Write the proportion equation
   3,981,312 : 5,363,712 = 5,363,712 : x
2. Step 2: Convert to fraction form
   3,981,312/5,363,712 = 5,363,712/x
3. Step 3: Cross multiply
   3,981,312x = 5,363,712 × 5,363,712
4. Step 4: Simplify right side
   3,981,312x = 28,769,406,418,944
5. Step 5: Solve for x
   x = 28,769,406,418,944/3,981,312
6. Step 6: Final answer
   x = 7,226,112