Finding the Third Proportional to 42,309 and 91,901.25

Step by Step Solution

1. Step 1: Write the proportion equation
   42,309 : 91,901.25 = 91,901.25 : x
2. Step 2: Convert to fraction form
   42,309/91,901.25 = 91,901.25/x
3. Step 3: Cross multiply
   42,309x = 91,901.25 × 91,901.25
4. Step 4: Simplify right side
   42,309x = 8,445,839,751.56
5. Step 5: Solve for x
   x = 8,445,839,751.56/42,309
6. Step 6: Final answer
   x = 199,622.77