Finding the Third Proportional to 117,112.50 and 260,427

Step by Step Solution

1. Step 1: Write the proportion equation
   117,112.50 : 260,427 = 260,427 : x
2. Step 2: Convert to fraction form
   117,112.50/260,427 = 260,427/x
3. Step 3: Cross multiply
   117,112.50x = 260,427 × 260,427
4. Step 4: Simplify right side
   117,112.50x = 67,822,222,329
5. Step 5: Solve for x
   x = 67,822,222,329/117,112.50
6. Step 6: Final answer
   x = 579,120.27