Finding the Third Proportional to 30,429 and 45,388

Step by Step Solution

1. Step 1: Write the proportion equation
   30,429 : 45,388 = 45,388 : x
2. Step 2: Convert to fraction form
   30,429/45,388 = 45,388/x
3. Step 3: Cross multiply
   30,429x = 45,388 × 45,388
4. Step 4: Simplify right side
   30,429x = 2,060,070,544
5. Step 5: Solve for x
   x = 2,060,070,544/30,429
6. Step 6: Final answer
   x = 67,700.90