Finding the Third Proportional to 1,702,090 and 3,687,860

Step by Step Solution

1. Step 1: Write the proportion equation
   1,702,090 : 3,687,860 = 3,687,860 : x
2. Step 2: Convert to fraction form
   1,702,090/3,687,860 = 3,687,860/x
3. Step 3: Cross multiply
   1,702,090x = 3,687,860 × 3,687,860
4. Step 4: Simplify right side
   1,702,090x = 13,600,311,379,600
5. Step 5: Solve for x
   x = 13,600,311,379,600/1,702,090
6. Step 6: Final answer
   x = 7,990,359.72