Finding the Third Proportional to 373,431 and 536,818.50

Step by Step Solution

1. Step 1: Write the proportion equation
   373,431 : 536,818.50 = 536,818.50 : x
2. Step 2: Convert to fraction form
   373,431/536,818.50 = 536,818.50/x
3. Step 3: Cross multiply
   373,431x = 536,818.50 × 536,818.50
4. Step 4: Simplify right side
   373,431x = 288,174,101,942.25
5. Step 5: Solve for x
   x = 288,174,101,942.25/373,431
6. Step 6: Final answer
   x = 771,693.04