Finding the Third Proportional to 42,993.91 and 91,210.43

Step by Step Solution

1. Step 1: Write the proportion equation
   42,993.91 : 91,210.43 = 91,210.43 : x
2. Step 2: Convert to fraction form
   42,993.91/91,210.43 = 91,210.43/x
3. Step 3: Cross multiply
   42,993.91x = 91,210.43 × 91,210.43
4. Step 4: Simplify right side
   42,993.91x = 8,319,342,483.78
5. Step 5: Solve for x
   x = 8,319,342,483.78/42,993.91
6. Step 6: Final answer
   x = 193,500.47