Finding the Third Proportional to 28,151 and 42,429

Step by Step Solution

1. Step 1: Write the proportion equation
   28,151 : 42,429 = 42,429 : x
2. Step 2: Convert to fraction form
   28,151/42,429 = 42,429/x
3. Step 3: Cross multiply
   28,151x = 42,429 × 42,429
4. Step 4: Simplify right side
   28,151x = 1,800,220,041
5. Step 5: Solve for x
   x = 1,800,220,041/28,151
6. Step 6: Final answer
   x = 63,948.71