Finding the Third Proportional to 139,752 and 215,073

Step by Step Solution

1. Step 1: Write the proportion equation
   139,752 : 215,073 = 215,073 : x
2. Step 2: Convert to fraction form
   139,752/215,073 = 215,073/x
3. Step 3: Cross multiply
   139,752x = 215,073 × 215,073
4. Step 4: Simplify right side
   139,752x = 46,256,395,329
5. Step 5: Solve for x
   x = 46,256,395,329/139,752
6. Step 6: Final answer
   x = 330,989.15