Finding the Third Proportional to 173,913 and 276,646.50

Step by Step Solution

1. Step 1: Write the proportion equation
   173,913 : 276,646.50 = 276,646.50 : x
2. Step 2: Convert to fraction form
   173,913/276,646.50 = 276,646.50/x
3. Step 3: Cross multiply
   173,913x = 276,646.50 × 276,646.50
4. Step 4: Simplify right side
   173,913x = 76,533,285,962.25
5. Step 5: Solve for x
   x = 76,533,285,962.25/173,913
6. Step 6: Final answer
   x = 440,066.50