Finding the Third Proportional to 117,055 and 276,212.50

Step by Step Solution

1. Step 1: Write the proportion equation
   117,055 : 276,212.50 = 276,212.50 : x
2. Step 2: Convert to fraction form
   117,055/276,212.50 = 276,212.50/x
3. Step 3: Cross multiply
   117,055x = 276,212.50 × 276,212.50
4. Step 4: Simplify right side
   117,055x = 76,293,345,156.25
5. Step 5: Solve for x
   x = 76,293,345,156.25/117,055
6. Step 6: Final answer
   x = 651,773.48