Finding the Third Proportional to 162,931.50 and 341,437.78

Step by Step Solution

1. Step 1: Write the proportion equation
   162,931.50 : 341,437.78 = 341,437.78 : x
2. Step 2: Convert to fraction form
   162,931.50/341,437.78 = 341,437.78/x
3. Step 3: Cross multiply
   162,931.50x = 341,437.78 × 341,437.78
4. Step 4: Simplify right side
   162,931.50x = 116,579,758,464.92
5. Step 5: Solve for x
   x = 116,579,758,464.92/162,931.50
6. Step 6: Final answer
   x = 715,513.93