Finding the Third Proportional to 42,259 and 91,815

Step by Step Solution

1. Step 1: Write the proportion equation
   42,259 : 91,815 = 91,815 : x
2. Step 2: Convert to fraction form
   42,259/91,815 = 91,815/x
3. Step 3: Cross multiply
   42,259x = 91,815 × 91,815
4. Step 4: Simplify right side
   42,259x = 8,429,994,225
5. Step 5: Solve for x
   x = 8,429,994,225/42,259
6. Step 6: Final answer
   x = 199,484.00