Finding the Third Proportional to 262,705.50 and 577,899

Step by Step Solution

1. Step 1: Write the proportion equation
   262,705.50 : 577,899 = 577,899 : x
2. Step 2: Convert to fraction form
   262,705.50/577,899 = 577,899/x
3. Step 3: Cross multiply
   262,705.50x = 577,899 × 577,899
4. Step 4: Simplify right side
   262,705.50x = 333,967,254,201
5. Step 5: Solve for x
   x = 333,967,254,201/262,705.50
6. Step 6: Final answer
   x = 1,271,260.99