Finding the Third Proportional to 116,720 and 254,564

Step by Step Solution

1. Step 1: Write the proportion equation
   116,720 : 254,564 = 254,564 : x
2. Step 2: Convert to fraction form
   116,720/254,564 = 254,564/x
3. Step 3: Cross multiply
   116,720x = 254,564 × 254,564
4. Step 4: Simplify right side
   116,720x = 64,802,830,096
5. Step 5: Solve for x
   x = 64,802,830,096/116,720
6. Step 6: Final answer
   x = 555,199.02