Finding the Third Proportional to 171,229 and 272,699.50

Step by Step Solution

1. Step 1: Write the proportion equation
   171,229 : 272,699.50 = 272,699.50 : x
2. Step 2: Convert to fraction form
   171,229/272,699.50 = 272,699.50/x
3. Step 3: Cross multiply
   171,229x = 272,699.50 × 272,699.50
4. Step 4: Simplify right side
   171,229x = 74,365,017,300.25
5. Step 5: Solve for x
   x = 74,365,017,300.25/171,229
6. Step 6: Final answer
   x = 434,301.53