Finding the Third Proportional to 15,773.91 and 34,828.31

Step by Step Solution

1. Step 1: Write the proportion equation
   15,773.91 : 34,828.31 = 34,828.31 : x
2. Step 2: Convert to fraction form
   15,773.91/34,828.31 = 34,828.31/x
3. Step 3: Cross multiply
   15,773.91x = 34,828.31 × 34,828.31
4. Step 4: Simplify right side
   15,773.91x = 1,213,011,351.60
5. Step 5: Solve for x
   x = 1,213,011,351.60/15,773.91
6. Step 6: Final answer
   x = 76,899.87