Finding the Third Proportional to 164,515.50 and 359,142.75

Step by Step Solution

1. Step 1: Write the proportion equation
   164,515.50 : 359,142.75 = 359,142.75 : x
2. Step 2: Convert to fraction form
   164,515.50/359,142.75 = 359,142.75/x
3. Step 3: Cross multiply
   164,515.50x = 359,142.75 × 359,142.75
4. Step 4: Simplify right side
   164,515.50x = 128,983,514,877.56
5. Step 5: Solve for x
   x = 128,983,514,877.56/164,515.50
6. Step 6: Final answer
   x = 784,020.44