Finding the Third Proportional to 276,373 and 426,775.50

Step by Step Solution

1. Step 1: Write the proportion equation
   276,373 : 426,775.50 = 426,775.50 : x
2. Step 2: Convert to fraction form
   276,373/426,775.50 = 426,775.50/x
3. Step 3: Cross multiply
   276,373x = 426,775.50 × 426,775.50
4. Step 4: Simplify right side
   276,373x = 182,137,327,400.25
5. Step 5: Solve for x
   x = 182,137,327,400.25/276,373
6. Step 6: Final answer
   x = 659,027.21