Finding the Third Proportional to 19,666.69 and 31,156.88

Step by Step Solution

1. Step 1: Write the proportion equation
   19,666.69 : 31,156.88 = 31,156.88 : x
2. Step 2: Convert to fraction form
   19,666.69/31,156.88 = 31,156.88/x
3. Step 3: Cross multiply
   19,666.69x = 31,156.88 × 31,156.88
4. Step 4: Simplify right side
   19,666.69x = 970,750,859.77
5. Step 5: Solve for x
   x = 970,750,859.77/19,666.69
6. Step 6: Final answer
   x = 49,360.16