Finding the Third Proportional to 809,929 and 1,772,402

Step by Step Solution

1. Step 1: Write the proportion equation
   809,929 : 1,772,402 = 1,772,402 : x
2. Step 2: Convert to fraction form
   809,929/1,772,402 = 1,772,402/x
3. Step 3: Cross multiply
   809,929x = 1,772,402 × 1,772,402
4. Step 4: Simplify right side
   809,929x = 3,141,408,849,604
5. Step 5: Solve for x
   x = 3,141,408,849,604/809,929
6. Step 6: Final answer
   x = 3,878,622.51