Finding the Third Proportional to 30,788 and 45,156

Step by Step Solution

1. Step 1: Write the proportion equation
   30,788 : 45,156 = 45,156 : x
2. Step 2: Convert to fraction form
   30,788/45,156 = 45,156/x
3. Step 3: Cross multiply
   30,788x = 45,156 × 45,156
4. Step 4: Simplify right side
   30,788x = 2,039,064,336
5. Step 5: Solve for x
   x = 2,039,064,336/30,788
6. Step 6: Final answer
   x = 66,229.19