Finding the Third Proportional to 314,938 and 472,406

Step by Step Solution

1. Step 1: Write the proportion equation
   314,938 : 472,406 = 472,406 : x
2. Step 2: Convert to fraction form
   314,938/472,406 = 472,406/x
3. Step 3: Cross multiply
   314,938x = 472,406 × 472,406
4. Step 4: Simplify right side
   314,938x = 223,167,428,836
5. Step 5: Solve for x
   x = 223,167,428,836/314,938
6. Step 6: Final answer
   x = 708,607.50