Finding the Third Proportional to 52,172 and 112,640

Step by Step Solution

1. Step 1: Write the proportion equation
   52,172 : 112,640 = 112,640 : x
2. Step 2: Convert to fraction form
   52,172/112,640 = 112,640/x
3. Step 3: Cross multiply
   52,172x = 112,640 × 112,640
4. Step 4: Simplify right side
   52,172x = 12,687,769,600
5. Step 5: Solve for x
   x = 12,687,769,600/52,172
6. Step 6: Final answer
   x = 243,191.17