Finding the Third Proportional to 58,021.88 and 78,284.81

Step by Step Solution

1. Step 1: Write the proportion equation
   58,021.88 : 78,284.81 = 78,284.81 : x
2. Step 2: Convert to fraction form
   58,021.88/78,284.81 = 78,284.81/x
3. Step 3: Cross multiply
   58,021.88x = 78,284.81 × 78,284.81
4. Step 4: Simplify right side
   58,021.88x = 6,128,511,868.16
5. Step 5: Solve for x
   x = 6,128,511,868.16/58,021.88
6. Step 6: Final answer
   x = 105,624.16