Finding the Third Proportional to 28,238.63 and 61,396.31

Step by Step Solution

1. Step 1: Write the proportion equation
   28,238.63 : 61,396.31 = 61,396.31 : x
2. Step 2: Convert to fraction form
   28,238.63/61,396.31 = 61,396.31/x
3. Step 3: Cross multiply
   28,238.63x = 61,396.31 × 61,396.31
4. Step 4: Simplify right side
   28,238.63x = 3,769,507,188.60
5. Step 5: Solve for x
   x = 3,769,507,188.60/28,238.63
6. Step 6: Final answer
   x = 133,487.63