Finding the Third Proportional to 292,215 and 395,986.50

Step by Step Solution

1. Step 1: Write the proportion equation
   292,215 : 395,986.50 = 395,986.50 : x
2. Step 2: Convert to fraction form
   292,215/395,986.50 = 395,986.50/x
3. Step 3: Cross multiply
   292,215x = 395,986.50 × 395,986.50
4. Step 4: Simplify right side
   292,215x = 156,805,308,182.25
5. Step 5: Solve for x
   x = 156,805,308,182.25/292,215
6. Step 6: Final answer
   x = 536,609.37