Finding the Third Proportional to 272,612.25 and 558,819

Step by Step Solution

1. Step 1: Write the proportion equation
   272,612.25 : 558,819 = 558,819 : x
2. Step 2: Convert to fraction form
   272,612.25/558,819 = 558,819/x
3. Step 3: Cross multiply
   272,612.25x = 558,819 × 558,819
4. Step 4: Simplify right side
   272,612.25x = 312,278,674,761
5. Step 5: Solve for x
   x = 312,278,674,761/272,612.25
6. Step 6: Final answer
   x = 1,145,504.92