Finding the Third Proportional to 1,308,910 and 1,920,268

Step by Step Solution

1. Step 1: Write the proportion equation
   1,308,910 : 1,920,268 = 1,920,268 : x
2. Step 2: Convert to fraction form
   1,308,910/1,920,268 = 1,920,268/x
3. Step 3: Cross multiply
   1,308,910x = 1,920,268 × 1,920,268
4. Step 4: Simplify right side
   1,308,910x = 3,687,429,191,824
5. Step 5: Solve for x
   x = 3,687,429,191,824/1,308,910
6. Step 6: Final answer
   x = 2,817,175.51