Finding the Third Proportional to 54,447.19 and 59,428.69

Step by Step Solution

1. Step 1: Write the proportion equation
   54,447.19 : 59,428.69 = 59,428.69 : x
2. Step 2: Convert to fraction form
   54,447.19/59,428.69 = 59,428.69/x
3. Step 3: Cross multiply
   54,447.19x = 59,428.69 × 59,428.69
4. Step 4: Simplify right side
   54,447.19x = 3,531,768,897.97
5. Step 5: Solve for x
   x = 3,531,768,897.97/54,447.19
6. Step 6: Final answer
   x = 64,865.96