Finding the Third Proportional to 266,520 and 577,327.50

Step by Step Solution

1. Step 1: Write the proportion equation
   266,520 : 577,327.50 = 577,327.50 : x
2. Step 2: Convert to fraction form
   266,520/577,327.50 = 577,327.50/x
3. Step 3: Cross multiply
   266,520x = 577,327.50 × 577,327.50
4. Step 4: Simplify right side
   266,520x = 333,307,042,256.25
5. Step 5: Solve for x
   x = 333,307,042,256.25/266,520
6. Step 6: Final answer
   x = 1,250,589.23