Finding the Third Proportional to 372,937.50 and 816,408

Step by Step Solution

1. Step 1: Write the proportion equation
   372,937.50 : 816,408 = 816,408 : x
2. Step 2: Convert to fraction form
   372,937.50/816,408 = 816,408/x
3. Step 3: Cross multiply
   372,937.50x = 816,408 × 816,408
4. Step 4: Simplify right side
   372,937.50x = 666,522,022,464
5. Step 5: Solve for x
   x = 666,522,022,464/372,937.50
6. Step 6: Final answer
   x = 1,787,221.78