Finding the Third Proportional to 42,103.50 and 91,289.06

Step by Step Solution

1. Step 1: Write the proportion equation
   42,103.50 : 91,289.06 = 91,289.06 : x
2. Step 2: Convert to fraction form
   42,103.50/91,289.06 = 91,289.06/x
3. Step 3: Cross multiply
   42,103.50x = 91,289.06 × 91,289.06
4. Step 4: Simplify right side
   42,103.50x = 8,333,692,932.13
5. Step 5: Solve for x
   x = 8,333,692,932.13/42,103.50
6. Step 6: Final answer
   x = 197,933.50