Finding the Third Proportional to 156,843 and 336,440.63

Step by Step Solution

1. Step 1: Write the proportion equation
   156,843 : 336,440.63 = 336,440.63 : x
2. Step 2: Convert to fraction form
   156,843/336,440.63 = 336,440.63/x
3. Step 3: Cross multiply
   156,843x = 336,440.63 × 336,440.63
4. Step 4: Simplify right side
   156,843x = 113,192,294,150.39
5. Step 5: Solve for x
   x = 113,192,294,150.39/156,843
6. Step 6: Final answer
   x = 721,691.72