Finding the Third Proportional to 568,777.50 and 856,773

Step by Step Solution

1. Step 1: Write the proportion equation
   568,777.50 : 856,773 = 856,773 : x
2. Step 2: Convert to fraction form
   568,777.50/856,773 = 856,773/x
3. Step 3: Cross multiply
   568,777.50x = 856,773 × 856,773
4. Step 4: Simplify right side
   568,777.50x = 734,059,973,529
5. Step 5: Solve for x
   x = 734,059,973,529/568,777.50
6. Step 6: Final answer
   x = 1,290,592.50