Finding the Third Proportional to 163,276.50 and 252,196.50

Step by Step Solution

1. Step 1: Write the proportion equation
   163,276.50 : 252,196.50 = 252,196.50 : x
2. Step 2: Convert to fraction form
   163,276.50/252,196.50 = 252,196.50/x
3. Step 3: Cross multiply
   163,276.50x = 252,196.50 × 252,196.50
4. Step 4: Simplify right side
   163,276.50x = 63,603,074,612.25
5. Step 5: Solve for x
   x = 63,603,074,612.25/163,276.50
6. Step 6: Final answer
   x = 389,542.12