Finding the Third Proportional to 623,619 and 1,347,030

Step by Step Solution

1. Step 1: Write the proportion equation
   623,619 : 1,347,030 = 1,347,030 : x
2. Step 2: Convert to fraction form
   623,619/1,347,030 = 1,347,030/x
3. Step 3: Cross multiply
   623,619x = 1,347,030 × 1,347,030
4. Step 4: Simplify right side
   623,619x = 1,814,489,820,900
5. Step 5: Solve for x
   x = 1,814,489,820,900/623,619
6. Step 6: Final answer
   x = 2,909,612.79