Finding the Third Proportional to 1,315,791 and 1,983,402

Step by Step Solution

1. Step 1: Write the proportion equation
   1,315,791 : 1,983,402 = 1,983,402 : x
2. Step 2: Convert to fraction form
   1,315,791/1,983,402 = 1,983,402/x
3. Step 3: Cross multiply
   1,315,791x = 1,983,402 × 1,983,402
4. Step 4: Simplify right side
   1,315,791x = 3,933,883,493,604
5. Step 5: Solve for x
   x = 3,933,883,493,604/1,315,791
6. Step 6: Final answer
   x = 2,989,747.99