Finding the Third Proportional to 19,615 and 42,685

Step by Step Solution

1. Step 1: Write the proportion equation
   19,615 : 42,685 = 42,685 : x
2. Step 2: Convert to fraction form
   19,615/42,685 = 42,685/x
3. Step 3: Cross multiply
   19,615x = 42,685 × 42,685
4. Step 4: Simplify right side
   19,615x = 1,822,009,225
5. Step 5: Solve for x
   x = 1,822,009,225/19,615
6. Step 6: Final answer
   x = 92,888.57