Finding the Third Proportional to 623,321 and 1,345,056

Step by Step Solution

1. Step 1: Write the proportion equation
   623,321 : 1,345,056 = 1,345,056 : x
2. Step 2: Convert to fraction form
   623,321/1,345,056 = 1,345,056/x
3. Step 3: Cross multiply
   623,321x = 1,345,056 × 1,345,056
4. Step 4: Simplify right side
   623,321x = 1,809,175,643,136
5. Step 5: Solve for x
   x = 1,809,175,643,136/623,321
6. Step 6: Final answer
   x = 2,902,478.25