Finding the Third Proportional to 170,059.50 and 265,428

Step by Step Solution

1. Step 1: Write the proportion equation
   170,059.50 : 265,428 = 265,428 : x
2. Step 2: Convert to fraction form
   170,059.50/265,428 = 265,428/x
3. Step 3: Cross multiply
   170,059.50x = 265,428 × 265,428
4. Step 4: Simplify right side
   170,059.50x = 70,452,023,184
5. Step 5: Solve for x
   x = 70,452,023,184/170,059.50
6. Step 6: Final answer
   x = 414,278.67