Finding the Third Proportional to 776,406 and 1,646,124

Step by Step Solution

1. Step 1: Write the proportion equation
   776,406 : 1,646,124 = 1,646,124 : x
2. Step 2: Convert to fraction form
   776,406/1,646,124 = 1,646,124/x
3. Step 3: Cross multiply
   776,406x = 1,646,124 × 1,646,124
4. Step 4: Simplify right side
   776,406x = 2,709,724,223,376
5. Step 5: Solve for x
   x = 2,709,724,223,376/776,406
6. Step 6: Final answer
   x = 3,490,086.66