Finding the Third Proportional to 28,415.81 and 42,168.09

Step by Step Solution

1. Step 1: Write the proportion equation
   28,415.81 : 42,168.09 = 42,168.09 : x
2. Step 2: Convert to fraction form
   28,415.81/42,168.09 = 42,168.09/x
3. Step 3: Cross multiply
   28,415.81x = 42,168.09 × 42,168.09
4. Step 4: Simplify right side
   28,415.81x = 1,778,148,130.51
5. Step 5: Solve for x
   x = 1,778,148,130.51/28,415.81
6. Step 6: Final answer
   x = 62,576.01