Finding the Third Proportional to 116,154 and 254,442

Step by Step Solution

1. Step 1: Write the proportion equation
   116,154 : 254,442 = 254,442 : x
2. Step 2: Convert to fraction form
   116,154/254,442 = 254,442/x
3. Step 3: Cross multiply
   116,154x = 254,442 × 254,442
4. Step 4: Simplify right side
   116,154x = 64,740,731,364
5. Step 5: Solve for x
   x = 64,740,731,364/116,154
6. Step 6: Final answer
   x = 557,369.80