Finding the Third Proportional to 623,198 and 1,355,764

Step by Step Solution

1. Step 1: Write the proportion equation
   623,198 : 1,355,764 = 1,355,764 : x
2. Step 2: Convert to fraction form
   623,198/1,355,764 = 1,355,764/x
3. Step 3: Cross multiply
   623,198x = 1,355,764 × 1,355,764
4. Step 4: Simplify right side
   623,198x = 1,838,096,023,696
5. Step 5: Solve for x
   x = 1,838,096,023,696/623,198
6. Step 6: Final answer
   x = 2,949,457.51