Finding the Third Proportional to 116,908 and 253,489.50

Step by Step Solution

1. Step 1: Write the proportion equation
   116,908 : 253,489.50 = 253,489.50 : x
2. Step 2: Convert to fraction form
   116,908/253,489.50 = 253,489.50/x
3. Step 3: Cross multiply
   116,908x = 253,489.50 × 253,489.50
4. Step 4: Simplify right side
   116,908x = 64,256,926,610.25
5. Step 5: Solve for x
   x = 64,256,926,610.25/116,908
6. Step 6: Final answer
   x = 549,636.69