Finding the Third Proportional to 315,311 and 737,571.50

Step by Step Solution

1. Step 1: Write the proportion equation
   315,311 : 737,571.50 = 737,571.50 : x
2. Step 2: Convert to fraction form
   315,311/737,571.50 = 737,571.50/x
3. Step 3: Cross multiply
   315,311x = 737,571.50 × 737,571.50
4. Step 4: Simplify right side
   315,311x = 544,011,717,612.25
5. Step 5: Solve for x
   x = 544,011,717,612.25/315,311
6. Step 6: Final answer
   x = 1,725,317.92