Finding the Third Proportional to 92,200 and 139,148

Step by Step Solution

1. Step 1: Write the proportion equation
   92,200 : 139,148 = 139,148 : x
2. Step 2: Convert to fraction form
   92,200/139,148 = 139,148/x
3. Step 3: Cross multiply
   92,200x = 139,148 × 139,148
4. Step 4: Simplify right side
   92,200x = 19,362,165,904
5. Step 5: Solve for x
   x = 19,362,165,904/92,200
6. Step 6: Final answer
   x = 210,001.80