Finding the Third Proportional to 162,354 and 254,749.50

Step by Step Solution

1. Step 1: Write the proportion equation
   162,354 : 254,749.50 = 254,749.50 : x
2. Step 2: Convert to fraction form
   162,354/254,749.50 = 254,749.50/x
3. Step 3: Cross multiply
   162,354x = 254,749.50 × 254,749.50
4. Step 4: Simplify right side
   162,354x = 64,897,307,750.25
5. Step 5: Solve for x
   x = 64,897,307,750.25/162,354
6. Step 6: Final answer
   x = 399,727.19