Finding the Third Proportional to 671,920 and 1,452,272

Step by Step Solution

1. Step 1: Write the proportion equation
   671,920 : 1,452,272 = 1,452,272 : x
2. Step 2: Convert to fraction form
   671,920/1,452,272 = 1,452,272/x
3. Step 3: Cross multiply
   671,920x = 1,452,272 × 1,452,272
4. Step 4: Simplify right side
   671,920x = 2,109,093,961,984
5. Step 5: Solve for x
   x = 2,109,093,961,984/671,920
6. Step 6: Final answer
   x = 3,138,906.36