Finding the Third Proportional to 156,678 and 336,925.50

Step by Step Solution

1. Step 1: Write the proportion equation
   156,678 : 336,925.50 = 336,925.50 : x
2. Step 2: Convert to fraction form
   156,678/336,925.50 = 336,925.50/x
3. Step 3: Cross multiply
   156,678x = 336,925.50 × 336,925.50
4. Step 4: Simplify right side
   156,678x = 113,518,792,550.25
5. Step 5: Solve for x
   x = 113,518,792,550.25/156,678
6. Step 6: Final answer
   x = 724,535.62