Finding the Third Proportional to 170,859 and 254,899.50

Step by Step Solution

1. Step 1: Write the proportion equation
   170,859 : 254,899.50 = 254,899.50 : x
2. Step 2: Convert to fraction form
   170,859/254,899.50 = 254,899.50/x
3. Step 3: Cross multiply
   170,859x = 254,899.50 × 254,899.50
4. Step 4: Simplify right side
   170,859x = 64,973,755,100.25
5. Step 5: Solve for x
   x = 64,973,755,100.25/170,859
6. Step 6: Final answer
   x = 380,277.04