Finding the Third Proportional to 68,221.69 and 97,690.22

Step by Step Solution

1. Step 1: Write the proportion equation
   68,221.69 : 97,690.22 = 97,690.22 : x
2. Step 2: Convert to fraction form
   68,221.69/97,690.22 = 97,690.22/x
3. Step 3: Cross multiply
   68,221.69x = 97,690.22 × 97,690.22
4. Step 4: Simplify right side
   68,221.69x = 9,543,378,839.42
5. Step 5: Solve for x
   x = 9,543,378,839.42/68,221.69
6. Step 6: Final answer
   x = 139,887.76