Finding the Third Proportional to 111,043 and 145,789.50

Step by Step Solution

1. Step 1: Write the proportion equation
   111,043 : 145,789.50 = 145,789.50 : x
2. Step 2: Convert to fraction form
   111,043/145,789.50 = 145,789.50/x
3. Step 3: Cross multiply
   111,043x = 145,789.50 × 145,789.50
4. Step 4: Simplify right side
   111,043x = 21,254,578,310.25
5. Step 5: Solve for x
   x = 21,254,578,310.25/111,043
6. Step 6: Final answer
   x = 191,408.54