Finding the Third Proportional to 168,429.38 and 253,327.50

Step by Step Solution

1. Step 1: Write the proportion equation
   168,429.38 : 253,327.50 = 253,327.50 : x
2. Step 2: Convert to fraction form
   168,429.38/253,327.50 = 253,327.50/x
3. Step 3: Cross multiply
   168,429.38x = 253,327.50 × 253,327.50
4. Step 4: Simplify right side
   168,429.38x = 64,174,822,256.25
5. Step 5: Solve for x
   x = 64,174,822,256.25/168,429.38
6. Step 6: Final answer
   x = 381,019.18