Finding the Third Proportional to 64,577.25 and 139,050

Step by Step Solution

1. Step 1: Write the proportion equation
   64,577.25 : 139,050 = 139,050 : x
2. Step 2: Convert to fraction form
   64,577.25/139,050 = 139,050/x
3. Step 3: Cross multiply
   64,577.25x = 139,050 × 139,050
4. Step 4: Simplify right side
   64,577.25x = 19,334,902,500
5. Step 5: Solve for x
   x = 19,334,902,500/64,577.25
6. Step 6: Final answer
   x = 299,407.34