Finding the Third Proportional to 272,242 and 591,720.50

Step by Step Solution

1. Step 1: Write the proportion equation
   272,242 : 591,720.50 = 591,720.50 : x
2. Step 2: Convert to fraction form
   272,242/591,720.50 = 591,720.50/x
3. Step 3: Cross multiply
   272,242x = 591,720.50 × 591,720.50
4. Step 4: Simplify right side
   272,242x = 350,133,150,120.25
5. Step 5: Solve for x
   x = 350,133,150,120.25/272,242
6. Step 6: Final answer
   x = 1,286,109.97