Finding the Third Proportional to 92,209 and 139,160

Step by Step Solution

1. Step 1: Write the proportion equation
   92,209 : 139,160 = 139,160 : x
2. Step 2: Convert to fraction form
   92,209/139,160 = 139,160/x
3. Step 3: Cross multiply
   92,209x = 139,160 × 139,160
4. Step 4: Simplify right side
   92,209x = 19,365,505,600
5. Step 5: Solve for x
   x = 19,365,505,600/92,209
6. Step 6: Final answer
   x = 210,017.52