Finding the Third Proportional to 1,687,854 and 3,696,138

Step by Step Solution

1. Step 1: Write the proportion equation
   1,687,854 : 3,696,138 = 3,696,138 : x
2. Step 2: Convert to fraction form
   1,687,854/3,696,138 = 3,696,138/x
3. Step 3: Cross multiply
   1,687,854x = 3,696,138 × 3,696,138
4. Step 4: Simplify right side
   1,687,854x = 13,661,436,115,044
5. Step 5: Solve for x
   x = 13,661,436,115,044/1,687,854
6. Step 6: Final answer
   x = 8,093,967.91