Finding the Third Proportional to 1,000,391 and 2,191,414

Step by Step Solution

1. Step 1: Write the proportion equation
   1,000,391 : 2,191,414 = 2,191,414 : x
2. Step 2: Convert to fraction form
   1,000,391/2,191,414 = 2,191,414/x
3. Step 3: Cross multiply
   1,000,391x = 2,191,414 × 2,191,414
4. Step 4: Simplify right side
   1,000,391x = 4,802,295,319,396
5. Step 5: Solve for x
   x = 4,802,295,319,396/1,000,391
6. Step 6: Final answer
   x = 4,800,418.36