Finding the Third Proportional to 272,614.50 and 578,277

Step by Step Solution

1. Step 1: Write the proportion equation
   272,614.50 : 578,277 = 578,277 : x
2. Step 2: Convert to fraction form
   272,614.50/578,277 = 578,277/x
3. Step 3: Cross multiply
   272,614.50x = 578,277 × 578,277
4. Step 4: Simplify right side
   272,614.50x = 334,404,288,729
5. Step 5: Solve for x
   x = 334,404,288,729/272,614.50
6. Step 6: Final answer
   x = 1,226,656.28