Finding the Third Proportional to 299,704.50 and 627,111

Step by Step Solution

1. Step 1: Write the proportion equation
   299,704.50 : 627,111 = 627,111 : x
2. Step 2: Convert to fraction form
   299,704.50/627,111 = 627,111/x
3. Step 3: Cross multiply
   299,704.50x = 627,111 × 627,111
4. Step 4: Simplify right side
   299,704.50x = 393,268,206,321
5. Step 5: Solve for x
   x = 393,268,206,321/299,704.50
6. Step 6: Final answer
   x = 1,312,186.52