Finding the Third Proportional to 863,961 and 1,216,116

Step by Step Solution

1. Step 1: Write the proportion equation
   863,961 : 1,216,116 = 1,216,116 : x
2. Step 2: Convert to fraction form
   863,961/1,216,116 = 1,216,116/x
3. Step 3: Cross multiply
   863,961x = 1,216,116 × 1,216,116
4. Step 4: Simplify right side
   863,961x = 1,478,938,125,456
5. Step 5: Solve for x
   x = 1,478,938,125,456/863,961
6. Step 6: Final answer
   x = 1,711,811.21