Finding the Third Proportional to 116,859 and 253,590

Step by Step Solution

1. Step 1: Write the proportion equation
   116,859 : 253,590 = 253,590 : x
2. Step 2: Convert to fraction form
   116,859/253,590 = 253,590/x
3. Step 3: Cross multiply
   116,859x = 253,590 × 253,590
4. Step 4: Simplify right side
   116,859x = 64,307,888,100
5. Step 5: Solve for x
   x = 64,307,888,100/116,859
6. Step 6: Final answer
   x = 550,303.26