Finding the Third Proportional to 156,402.75 and 334,945.50

Step by Step Solution

1. Step 1: Write the proportion equation
   156,402.75 : 334,945.50 = 334,945.50 : x
2. Step 2: Convert to fraction form
   156,402.75/334,945.50 = 334,945.50/x
3. Step 3: Cross multiply
   156,402.75x = 334,945.50 × 334,945.50
4. Step 4: Simplify right side
   156,402.75x = 112,188,487,970.25
5. Step 5: Solve for x
   x = 112,188,487,970.25/156,402.75
6. Step 6: Final answer
   x = 717,305.09