Finding the Third Proportional to 1,271,628 and 1,920,402

Step by Step Solution

1. Step 1: Write the proportion equation
   1,271,628 : 1,920,402 = 1,920,402 : x
2. Step 2: Convert to fraction form
   1,271,628/1,920,402 = 1,920,402/x
3. Step 3: Cross multiply
   1,271,628x = 1,920,402 × 1,920,402
4. Step 4: Simplify right side
   1,271,628x = 3,687,943,841,604
5. Step 5: Solve for x
   x = 3,687,943,841,604/1,271,628
6. Step 6: Final answer
   x = 2,900,175.08