Finding the Third Proportional to 116,230 and 245,516

Step by Step Solution

1. Step 1: Write the proportion equation
   116,230 : 245,516 = 245,516 : x
2. Step 2: Convert to fraction form
   116,230/245,516 = 245,516/x
3. Step 3: Cross multiply
   116,230x = 245,516 × 245,516
4. Step 4: Simplify right side
   116,230x = 60,278,106,256
5. Step 5: Solve for x
   x = 60,278,106,256/116,230
6. Step 6: Final answer
   x = 518,610.57