Finding the Third Proportional to 1,689,021 and 3,715,841

Step by Step Solution

1. Step 1: Write the proportion equation
   1,689,021 : 3,715,841 = 3,715,841 : x
2. Step 2: Convert to fraction form
   1,689,021/3,715,841 = 3,715,841/x
3. Step 3: Cross multiply
   1,689,021x = 3,715,841 × 3,715,841
4. Step 4: Simplify right side
   1,689,021x = 13,807,474,337,281
5. Step 5: Solve for x
   x = 13,807,474,337,281/1,689,021
6. Step 6: Final answer
   x = 8,174,838.76