Finding the Third Proportional to 266,698.50 and 577,866

Step by Step Solution

1. Step 1: Write the proportion equation
   266,698.50 : 577,866 = 577,866 : x
2. Step 2: Convert to fraction form
   266,698.50/577,866 = 577,866/x
3. Step 3: Cross multiply
   266,698.50x = 577,866 × 577,866
4. Step 4: Simplify right side
   266,698.50x = 333,929,113,956
5. Step 5: Solve for x
   x = 333,929,113,956/266,698.50
6. Step 6: Final answer
   x = 1,252,084.71