Finding the Third Proportional to 291,977.50 and 627,600

Step by Step Solution

1. Step 1: Write the proportion equation
   291,977.50 : 627,600 = 627,600 : x
2. Step 2: Convert to fraction form
   291,977.50/627,600 = 627,600/x
3. Step 3: Cross multiply
   291,977.50x = 627,600 × 627,600
4. Step 4: Simplify right side
   291,977.50x = 393,881,760,000
5. Step 5: Solve for x
   x = 393,881,760,000/291,977.50
6. Step 6: Final answer
   x = 1,349,014.08