Finding the Third Proportional to 809,790 and 1,772,124

Step by Step Solution

1. Step 1: Write the proportion equation
   809,790 : 1,772,124 = 1,772,124 : x
2. Step 2: Convert to fraction form
   809,790/1,772,124 = 1,772,124/x
3. Step 3: Cross multiply
   809,790x = 1,772,124 × 1,772,124
4. Step 4: Simplify right side
   809,790x = 3,140,423,471,376
5. Step 5: Solve for x
   x = 3,140,423,471,376/809,790
6. Step 6: Final answer
   x = 3,878,071.44