Finding the Third Proportional to 42,030 and 89,676

Step by Step Solution

1. Step 1: Write the proportion equation
   42,030 : 89,676 = 89,676 : x
2. Step 2: Convert to fraction form
   42,030/89,676 = 89,676/x
3. Step 3: Cross multiply
   42,030x = 89,676 × 89,676
4. Step 4: Simplify right side
   42,030x = 8,041,784,976
5. Step 5: Solve for x
   x = 8,041,784,976/42,030
6. Step 6: Final answer
   x = 191,334.40