Finding the Third Proportional to 158,977.50 and 336,359.25

Step by Step Solution

1. Step 1: Write the proportion equation
   158,977.50 : 336,359.25 = 336,359.25 : x
2. Step 2: Convert to fraction form
   158,977.50/336,359.25 = 336,359.25/x
3. Step 3: Cross multiply
   158,977.50x = 336,359.25 × 336,359.25
4. Step 4: Simplify right side
   158,977.50x = 113,137,545,060.56
5. Step 5: Solve for x
   x = 113,137,545,060.56/158,977.50
6. Step 6: Final answer
   x = 711,657.59