Finding the Third Proportional to 847,724 and 1,280,226

Step by Step Solution

1. Step 1: Write the proportion equation
   847,724 : 1,280,226 = 1,280,226 : x
2. Step 2: Convert to fraction form
   847,724/1,280,226 = 1,280,226/x
3. Step 3: Cross multiply
   847,724x = 1,280,226 × 1,280,226
4. Step 4: Simplify right side
   847,724x = 1,638,978,611,076
5. Step 5: Solve for x
   x = 1,638,978,611,076/847,724
6. Step 6: Final answer
   x = 1,933,387.06