Finding the Third Proportional to 28,290.56 and 62,021.63

Step by Step Solution

1. Step 1: Write the proportion equation
   28,290.56 : 62,021.63 = 62,021.63 : x
2. Step 2: Convert to fraction form
   28,290.56/62,021.63 = 62,021.63/x
3. Step 3: Cross multiply
   28,290.56x = 62,021.63 × 62,021.63
4. Step 4: Simplify right side
   28,290.56x = 3,846,681,967.64
5. Step 5: Solve for x
   x = 3,846,681,967.64/28,290.56
6. Step 6: Final answer
   x = 135,970.50