Finding the Third Proportional to 21,112 and 45,178

Step by Step Solution

1. Step 1: Write the proportion equation
   21,112 : 45,178 = 45,178 : x
2. Step 2: Convert to fraction form
   21,112/45,178 = 45,178/x
3. Step 3: Cross multiply
   21,112x = 45,178 × 45,178
4. Step 4: Simplify right side
   21,112x = 2,041,051,684
5. Step 5: Solve for x
   x = 2,041,051,684/21,112
6. Step 6: Final answer
   x = 96,677.32