Finding the Third Proportional to 623,624 and 912,108

Step by Step Solution

1. Step 1: Write the proportion equation
   623,624 : 912,108 = 912,108 : x
2. Step 2: Convert to fraction form
   623,624/912,108 = 912,108/x
3. Step 3: Cross multiply
   623,624x = 912,108 × 912,108
4. Step 4: Simplify right side
   623,624x = 831,941,003,664
5. Step 5: Solve for x
   x = 831,941,003,664/623,624
6. Step 6: Final answer
   x = 1,334,042.63