Finding the Third Proportional to 58,920.19 and 91,045.69

Step by Step Solution

1. Step 1: Write the proportion equation
   58,920.19 : 91,045.69 = 91,045.69 : x
2. Step 2: Convert to fraction form
   58,920.19/91,045.69 = 91,045.69/x
3. Step 3: Cross multiply
   58,920.19x = 91,045.69 × 91,045.69
4. Step 4: Simplify right side
   58,920.19x = 8,289,317,212.35
5. Step 5: Solve for x
   x = 8,289,317,212.35/58,920.19
6. Step 6: Final answer
   x = 140,687.22