Finding the Third Proportional to 1,680,124 and 3,686,836

Step by Step Solution

1. Step 1: Write the proportion equation
   1,680,124 : 3,686,836 = 3,686,836 : x
2. Step 2: Convert to fraction form
   1,680,124/3,686,836 = 3,686,836/x
3. Step 3: Cross multiply
   1,680,124x = 3,686,836 × 3,686,836
4. Step 4: Simplify right side
   1,680,124x = 13,592,759,690,896
5. Step 5: Solve for x
   x = 13,592,759,690,896/1,680,124
6. Step 6: Final answer
   x = 8,090,331.24