Finding the Third Proportional to 92,196 and 139,141.50

Step by Step Solution

1. Step 1: Write the proportion equation
   92,196 : 139,141.50 = 139,141.50 : x
2. Step 2: Convert to fraction form
   92,196/139,141.50 = 139,141.50/x
3. Step 3: Cross multiply
   92,196x = 139,141.50 × 139,141.50
4. Step 4: Simplify right side
   92,196x = 19,360,357,022.25
5. Step 5: Solve for x
   x = 19,360,357,022.25/92,196
6. Step 6: Final answer
   x = 209,991.29