Finding the Third Proportional to 1,689,518 and 3,676,468

Step by Step Solution

1. Step 1: Write the proportion equation
   1,689,518 : 3,676,468 = 3,676,468 : x
2. Step 2: Convert to fraction form
   1,689,518/3,676,468 = 3,676,468/x
3. Step 3: Cross multiply
   1,689,518x = 3,676,468 × 3,676,468
4. Step 4: Simplify right side
   1,689,518x = 13,516,416,955,024
5. Step 5: Solve for x
   x = 13,516,416,955,024/1,689,518
6. Step 6: Final answer
   x = 8,000,161.56