Finding the Third Proportional to 623,616 and 912,096

Step by Step Solution

1. Step 1: Write the proportion equation
   623,616 : 912,096 = 912,096 : x
2. Step 2: Convert to fraction form
   623,616/912,096 = 912,096/x
3. Step 3: Cross multiply
   623,616x = 912,096 × 912,096
4. Step 4: Simplify right side
   623,616x = 831,919,113,216
5. Step 5: Solve for x
   x = 831,919,113,216/623,616
6. Step 6: Final answer
   x = 1,334,024.65