Finding the Third Proportional to 766,521 and 1,612,422

Step by Step Solution

1. Step 1: Write the proportion equation
   766,521 : 1,612,422 = 1,612,422 : x
2. Step 2: Convert to fraction form
   766,521/1,612,422 = 1,612,422/x
3. Step 3: Cross multiply
   766,521x = 1,612,422 × 1,612,422
4. Step 4: Simplify right side
   766,521x = 2,599,904,706,084
5. Step 5: Solve for x
   x = 2,599,904,706,084/766,521
6. Step 6: Final answer
   x = 3,391,824.50