Finding the Third Proportional to 28,136.06 and 42,918.56

Step by Step Solution

1. Step 1: Write the proportion equation
   28,136.06 : 42,918.56 = 42,918.56 : x
2. Step 2: Convert to fraction form
   28,136.06/42,918.56 = 42,918.56/x
3. Step 3: Cross multiply
   28,136.06x = 42,918.56 × 42,918.56
4. Step 4: Simplify right side
   28,136.06x = 1,842,003,007.07
5. Step 5: Solve for x
   x = 1,842,003,007.07/28,136.06
6. Step 6: Final answer
   x = 65,467.69