Finding the Third Proportional to 70,120.69 and 89,701.17

Step by Step Solution

1. Step 1: Write the proportion equation
   70,120.69 : 89,701.17 = 89,701.17 : x
2. Step 2: Convert to fraction form
   70,120.69/89,701.17 = 89,701.17/x
3. Step 3: Cross multiply
   70,120.69x = 89,701.17 × 89,701.17
4. Step 4: Simplify right side
   70,120.69x = 8,046,300,235.75
5. Step 5: Solve for x
   x = 8,046,300,235.75/70,120.69
6. Step 6: Final answer
   x = 114,749.31