Finding the Third Proportional to 1,688,642 and 2,488,310

Step by Step Solution

1. Step 1: Write the proportion equation
   1,688,642 : 2,488,310 = 2,488,310 : x
2. Step 2: Convert to fraction form
   1,688,642/2,488,310 = 2,488,310/x
3. Step 3: Cross multiply
   1,688,642x = 2,488,310 × 2,488,310
4. Step 4: Simplify right side
   1,688,642x = 6,191,686,656,100
5. Step 5: Solve for x
   x = 6,191,686,656,100/1,688,642
6. Step 6: Final answer
   x = 3,666,666.27