Finding the Third Proportional to 31,428 and 43,248

Step by Step Solution

1. Step 1: Write the proportion equation
   31,428 : 43,248 = 43,248 : x
2. Step 2: Convert to fraction form
   31,428/43,248 = 43,248/x
3. Step 3: Cross multiply
   31,428x = 43,248 × 43,248
4. Step 4: Simplify right side
   31,428x = 1,870,389,504
5. Step 5: Solve for x
   x = 1,870,389,504/31,428
6. Step 6: Final answer
   x = 59,513.48