Finding the Third Proportional to 250,158 and 387,934.50

Step by Step Solution

1. Step 1: Write the proportion equation
   250,158 : 387,934.50 = 387,934.50 : x
2. Step 2: Convert to fraction form
   250,158/387,934.50 = 387,934.50/x
3. Step 3: Cross multiply
   250,158x = 387,934.50 × 387,934.50
4. Step 4: Simplify right side
   250,158x = 150,493,176,290.25
5. Step 5: Solve for x
   x = 150,493,176,290.25/250,158
6. Step 6: Final answer
   x = 601,592.50