Finding the Third Proportional to 831,499 and 918,979

Step by Step Solution

1. Step 1: Write the proportion equation
   831,499 : 918,979 = 918,979 : x
2. Step 2: Convert to fraction form
   831,499/918,979 = 918,979/x
3. Step 3: Cross multiply
   831,499x = 918,979 × 918,979
4. Step 4: Simplify right side
   831,499x = 844,522,402,441
5. Step 5: Solve for x
   x = 844,522,402,441/831,499
6. Step 6: Final answer
   x = 1,015,662.56