Finding the Third Proportional to 291,429 and 627,144.75

Step by Step Solution

1. Step 1: Write the proportion equation
   291,429 : 627,144.75 = 627,144.75 : x
2. Step 2: Convert to fraction form
   291,429/627,144.75 = 627,144.75/x
3. Step 3: Cross multiply
   291,429x = 627,144.75 × 627,144.75
4. Step 4: Simplify right side
   291,429x = 393,310,537,452.56
5. Step 5: Solve for x
   x = 393,310,537,452.56/291,429
6. Step 6: Final answer
   x = 1,349,593.00