Finding the Third Proportional to 156,406.50 and 334,951.50

Step by Step Solution

1. Step 1: Write the proportion equation
   156,406.50 : 334,951.50 = 334,951.50 : x
2. Step 2: Convert to fraction form
   156,406.50/334,951.50 = 334,951.50/x
3. Step 3: Cross multiply
   156,406.50x = 334,951.50 × 334,951.50
4. Step 4: Simplify right side
   156,406.50x = 112,192,507,352.25
5. Step 5: Solve for x
   x = 112,192,507,352.25/156,406.50
6. Step 6: Final answer
   x = 717,313.59