Finding the Third Proportional to 1,000,431 and 2,190,612

Step by Step Solution

1. Step 1: Write the proportion equation
   1,000,431 : 2,190,612 = 2,190,612 : x
2. Step 2: Convert to fraction form
   1,000,431/2,190,612 = 2,190,612/x
3. Step 3: Cross multiply
   1,000,431x = 2,190,612 × 2,190,612
4. Step 4: Simplify right side
   1,000,431x = 4,798,780,934,544
5. Step 5: Solve for x
   x = 4,798,780,934,544/1,000,431
6. Step 6: Final answer
   x = 4,796,713.55