Finding the Third Proportional to 403,861 and 627,097.50

Step by Step Solution

1. Step 1: Write the proportion equation
   403,861 : 627,097.50 = 627,097.50 : x
2. Step 2: Convert to fraction form
   403,861/627,097.50 = 627,097.50/x
3. Step 3: Cross multiply
   403,861x = 627,097.50 × 627,097.50
4. Step 4: Simplify right side
   403,861x = 393,251,274,506.25
5. Step 5: Solve for x
   x = 393,251,274,506.25/403,861
6. Step 6: Final answer
   x = 973,729.26