Finding the Third Proportional to 162,915 and 250,699.50

Step by Step Solution

1. Step 1: Write the proportion equation
   162,915 : 250,699.50 = 250,699.50 : x
2. Step 2: Convert to fraction form
   162,915/250,699.50 = 250,699.50/x
3. Step 3: Cross multiply
   162,915x = 250,699.50 × 250,699.50
4. Step 4: Simplify right side
   162,915x = 62,850,239,300.25
5. Step 5: Solve for x
   x = 62,850,239,300.25/162,915
6. Step 6: Final answer
   x = 385,785.47