Finding the Third Proportional to 200,742.47 and 272,501.72

Step by Step Solution

1. Step 1: Write the proportion equation
   200,742.47 : 272,501.72 = 272,501.72 : x
2. Step 2: Convert to fraction form
   200,742.47/272,501.72 = 272,501.72/x
3. Step 3: Cross multiply
   200,742.47x = 272,501.72 × 272,501.72
4. Step 4: Simplify right side
   200,742.47x = 74,257,186,721.70
5. Step 5: Solve for x
   x = 74,257,186,721.70/200,742.47
6. Step 6: Final answer
   x = 369,912.69