Finding the Third Proportional to 19,766.81 and 42,358.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,766.81 : 42,358.50 = 42,358.50 : x
2. Step 2: Convert to fraction form
   19,766.81/42,358.50 = 42,358.50/x
3. Step 3: Cross multiply
   19,766.81x = 42,358.50 × 42,358.50
4. Step 4: Simplify right side
   19,766.81x = 1,794,242,522.25
5. Step 5: Solve for x
   x = 1,794,242,522.25/19,766.81
6. Step 6: Final answer
   x = 90,770.45