Finding the Third Proportional to 623,245 and 1,365,074

Step by Step Solution

1. Step 1: Write the proportion equation
   623,245 : 1,365,074 = 1,365,074 : x
2. Step 2: Convert to fraction form
   623,245/1,365,074 = 1,365,074/x
3. Step 3: Cross multiply
   623,245x = 1,365,074 × 1,365,074
4. Step 4: Simplify right side
   623,245x = 1,863,427,025,476
5. Step 5: Solve for x
   x = 1,863,427,025,476/623,245
6. Step 6: Final answer
   x = 2,989,878.82