Finding the Third Proportional to 272,181 and 355,781.50

Step by Step Solution

1. Step 1: Write the proportion equation
   272,181 : 355,781.50 = 355,781.50 : x
2. Step 2: Convert to fraction form
   272,181/355,781.50 = 355,781.50/x
3. Step 3: Cross multiply
   272,181x = 355,781.50 × 355,781.50
4. Step 4: Simplify right side
   272,181x = 126,580,475,742.25
5. Step 5: Solve for x
   x = 126,580,475,742.25/272,181
6. Step 6: Final answer
   x = 465,059.93