Finding the Third Proportional to 623,622 and 912,105

Step by Step Solution

1. Step 1: Write the proportion equation
   623,622 : 912,105 = 912,105 : x
2. Step 2: Convert to fraction form
   623,622/912,105 = 912,105/x
3. Step 3: Cross multiply
   623,622x = 912,105 × 912,105
4. Step 4: Simplify right side
   623,622x = 831,935,531,025
5. Step 5: Solve for x
   x = 831,935,531,025/623,622
6. Step 6: Final answer
   x = 1,334,038.14