Finding the Third Proportional to 250,155 and 387,929.25

Step by Step Solution

1. Step 1: Write the proportion equation
   250,155 : 387,929.25 = 387,929.25 : x
2. Step 2: Convert to fraction form
   250,155/387,929.25 = 387,929.25/x
3. Step 3: Cross multiply
   250,155x = 387,929.25 × 387,929.25
4. Step 4: Simplify right side
   250,155x = 150,489,103,005.56
5. Step 5: Solve for x
   x = 150,489,103,005.56/250,155
6. Step 6: Final answer
   x = 601,583.43