Finding the Third Proportional to 19,423.97 and 42,931.69

Step by Step Solution

1. Step 1: Write the proportion equation
   19,423.97 : 42,931.69 = 42,931.69 : x
2. Step 2: Convert to fraction form
   19,423.97/42,931.69 = 42,931.69/x
3. Step 3: Cross multiply
   19,423.97x = 42,931.69 × 42,931.69
4. Step 4: Simplify right side
   19,423.97x = 1,843,129,791.60
5. Step 5: Solve for x
   x = 1,843,129,791.60/19,423.97
6. Step 6: Final answer
   x = 94,889.45