Finding the Third Proportional to 200,932 and 272,890

Step by Step Solution

1. Step 1: Write the proportion equation
   200,932 : 272,890 = 272,890 : x
2. Step 2: Convert to fraction form
   200,932/272,890 = 272,890/x
3. Step 3: Cross multiply
   200,932x = 272,890 × 272,890
4. Step 4: Simplify right side
   200,932x = 74,468,952,100
5. Step 5: Solve for x
   x = 74,468,952,100/200,932
6. Step 6: Final answer
   x = 370,617.68