Finding the Third Proportional to 266,607 and 577,498.50

Step by Step Solution

1. Step 1: Write the proportion equation
   266,607 : 577,498.50 = 577,498.50 : x
2. Step 2: Convert to fraction form
   266,607/577,498.50 = 577,498.50/x
3. Step 3: Cross multiply
   266,607x = 577,498.50 × 577,498.50
4. Step 4: Simplify right side
   266,607x = 333,504,517,502.25
5. Step 5: Solve for x
   x = 333,504,517,502.25/266,607
6. Step 6: Final answer
   x = 1,250,921.83