Finding the Third Proportional to 42,329.81 and 90,491.63

Step by Step Solution

1. Step 1: Write the proportion equation
   42,329.81 : 90,491.63 = 90,491.63 : x
2. Step 2: Convert to fraction form
   42,329.81/90,491.63 = 90,491.63/x
3. Step 3: Cross multiply
   42,329.81x = 90,491.63 × 90,491.63
4. Step 4: Simplify right side
   42,329.81x = 8,188,734,195.14
5. Step 5: Solve for x
   x = 8,188,734,195.14/42,329.81
6. Step 6: Final answer
   x = 193,450.76