Finding the Third Proportional to 15,291.56 and 32,420.75

Step by Step Solution

1. Step 1: Write the proportion equation
   15,291.56 : 32,420.75 = 32,420.75 : x
2. Step 2: Convert to fraction form
   15,291.56/32,420.75 = 32,420.75/x
3. Step 3: Cross multiply
   15,291.56x = 32,420.75 × 32,420.75
4. Step 4: Simplify right side
   15,291.56x = 1,051,105,030.56
5. Step 5: Solve for x
   x = 1,051,105,030.56/15,291.56
6. Step 6: Final answer
   x = 68,737.58