Finding the Third Proportional to 52,640 and 100,428

Step by Step Solution

1. Step 1: Write the proportion equation
   52,640 : 100,428 = 100,428 : x
2. Step 2: Convert to fraction form
   52,640/100,428 = 100,428/x
3. Step 3: Cross multiply
   52,640x = 100,428 × 100,428
4. Step 4: Simplify right side
   52,640x = 10,085,783,184
5. Step 5: Solve for x
   x = 10,085,783,184/52,640
6. Step 6: Final answer
   x = 191,599.22