Finding the Third Proportional to 276,799 and 427,024.50

Step by Step Solution

1. Step 1: Write the proportion equation
   276,799 : 427,024.50 = 427,024.50 : x
2. Step 2: Convert to fraction form
   276,799/427,024.50 = 427,024.50/x
3. Step 3: Cross multiply
   276,799x = 427,024.50 × 427,024.50
4. Step 4: Simplify right side
   276,799x = 182,349,923,600.25
5. Step 5: Solve for x
   x = 182,349,923,600.25/276,799
6. Step 6: Final answer
   x = 658,781.01