Finding the Third Proportional to 681,272 and 1,478,460

Step by Step Solution

1. Step 1: Write the proportion equation
   681,272 : 1,478,460 = 1,478,460 : x
2. Step 2: Convert to fraction form
   681,272/1,478,460 = 1,478,460/x
3. Step 3: Cross multiply
   681,272x = 1,478,460 × 1,478,460
4. Step 4: Simplify right side
   681,272x = 2,185,843,971,600
5. Step 5: Solve for x
   x = 2,185,843,971,600/681,272
6. Step 6: Final answer
   x = 3,208,474.69