Finding the Third Proportional to 91,644.75 and 141,905.25

Step by Step Solution

1. Step 1: Write the proportion equation
   91,644.75 : 141,905.25 = 141,905.25 : x
2. Step 2: Convert to fraction form
   91,644.75/141,905.25 = 141,905.25/x
3. Step 3: Cross multiply
   91,644.75x = 141,905.25 × 141,905.25
4. Step 4: Simplify right side
   91,644.75x = 20,137,099,977.56
5. Step 5: Solve for x
   x = 20,137,099,977.56/91,644.75
6. Step 6: Final answer
   x = 219,729.99