Finding the Third Proportional to 64,116.75 and 139,100.25

Step by Step Solution

1. Step 1: Write the proportion equation
   64,116.75 : 139,100.25 = 139,100.25 : x
2. Step 2: Convert to fraction form
   64,116.75/139,100.25 = 139,100.25/x
3. Step 3: Cross multiply
   64,116.75x = 139,100.25 × 139,100.25
4. Step 4: Simplify right side
   64,116.75x = 19,348,879,550.06
5. Step 5: Solve for x
   x = 19,348,879,550.06/64,116.75
6. Step 6: Final answer
   x = 301,775.74