Finding the Third Proportional to 367,431 and 787,349.50

Step by Step Solution

1. Step 1: Write the proportion equation
   367,431 : 787,349.50 = 787,349.50 : x
2. Step 2: Convert to fraction form
   367,431/787,349.50 = 787,349.50/x
3. Step 3: Cross multiply
   367,431x = 787,349.50 × 787,349.50
4. Step 4: Simplify right side
   367,431x = 619,919,235,150.25
5. Step 5: Solve for x
   x = 619,919,235,150.25/367,431
6. Step 6: Final answer
   x = 1,687,171.84