Finding the Third Proportional to 168,156 and 252,426.38

Step by Step Solution

1. Step 1: Write the proportion equation
   168,156 : 252,426.38 = 252,426.38 : x
2. Step 2: Convert to fraction form
   168,156/252,426.38 = 252,426.38/x
3. Step 3: Cross multiply
   168,156x = 252,426.38 × 252,426.38
4. Step 4: Simplify right side
   168,156x = 63,719,074,795.64
5. Step 5: Solve for x
   x = 63,719,074,795.64/168,156
6. Step 6: Final answer
   x = 378,928.35