Finding the Third Proportional to 1,688,643 and 2,488,314

Step by Step Solution

1. Step 1: Write the proportion equation
   1,688,643 : 2,488,314 = 2,488,314 : x
2. Step 2: Convert to fraction form
   1,688,643/2,488,314 = 2,488,314/x
3. Step 3: Cross multiply
   1,688,643x = 2,488,314 × 2,488,314
4. Step 4: Simplify right side
   1,688,643x = 6,191,706,562,596
5. Step 5: Solve for x
   x = 6,191,706,562,596/1,688,643
6. Step 6: Final answer
   x = 3,666,675.88