Finding the Third Proportional to 116,670 and 254,459

Step by Step Solution

1. Step 1: Write the proportion equation
   116,670 : 254,459 = 254,459 : x
2. Step 2: Convert to fraction form
   116,670/254,459 = 254,459/x
3. Step 3: Cross multiply
   116,670x = 254,459 × 254,459
4. Step 4: Simplify right side
   116,670x = 64,749,382,681
5. Step 5: Solve for x
   x = 64,749,382,681/116,670
6. Step 6: Final answer
   x = 554,978.85