Finding the Third Proportional to 31,152 and 63,264

Step by Step Solution

1. Step 1: Write the proportion equation
   31,152 : 63,264 = 63,264 : x
2. Step 2: Convert to fraction form
   31,152/63,264 = 63,264/x
3. Step 3: Cross multiply
   31,152x = 63,264 × 63,264
4. Step 4: Simplify right side
   31,152x = 4,002,333,696
5. Step 5: Solve for x
   x = 4,002,333,696/31,152
6. Step 6: Final answer
   x = 128,477.58