Finding the Third Proportional to 116,910 and 253,494

Step by Step Solution

1. Step 1: Write the proportion equation
   116,910 : 253,494 = 253,494 : x
2. Step 2: Convert to fraction form
   116,910/253,494 = 253,494/x
3. Step 3: Cross multiply
   116,910x = 253,494 × 253,494
4. Step 4: Simplify right side
   116,910x = 64,259,208,036
5. Step 5: Solve for x
   x = 64,259,208,036/116,910
6. Step 6: Final answer
   x = 549,646.81