Finding the Third Proportional to 19,812 and 30,776

Step by Step Solution

1. Step 1: Write the proportion equation
   19,812 : 30,776 = 30,776 : x
2. Step 2: Convert to fraction form
   19,812/30,776 = 30,776/x
3. Step 3: Cross multiply
   19,812x = 30,776 × 30,776
4. Step 4: Simplify right side
   19,812x = 947,162,176
5. Step 5: Solve for x
   x = 947,162,176/19,812
6. Step 6: Final answer
   x = 47,807.50