Finding the Third Proportional to 99,111 and 141,285

Step by Step Solution

1. Step 1: Write the proportion equation
   99,111 : 141,285 = 141,285 : x
2. Step 2: Convert to fraction form
   99,111/141,285 = 141,285/x
3. Step 3: Cross multiply
   99,111x = 141,285 × 141,285
4. Step 4: Simplify right side
   99,111x = 19,961,451,225
5. Step 5: Solve for x
   x = 19,961,451,225/99,111
6. Step 6: Final answer
   x = 201,405.00