Finding the Third Proportional to 806,138 and 1,757,428

Step by Step Solution

1. Step 1: Write the proportion equation
   806,138 : 1,757,428 = 1,757,428 : x
2. Step 2: Convert to fraction form
   806,138/1,757,428 = 1,757,428/x
3. Step 3: Cross multiply
   806,138x = 1,757,428 × 1,757,428
4. Step 4: Simplify right side
   806,138x = 3,088,553,175,184
5. Step 5: Solve for x
   x = 3,088,553,175,184/806,138
6. Step 6: Final answer
   x = 3,831,295.85