Finding the Third Proportional to 65,802.38 and 99,290.81

Step by Step Solution

1. Step 1: Write the proportion equation
   65,802.38 : 99,290.81 = 99,290.81 : x
2. Step 2: Convert to fraction form
   65,802.38/99,290.81 = 99,290.81/x
3. Step 3: Cross multiply
   65,802.38x = 99,290.81 × 99,290.81
4. Step 4: Simplify right side
   65,802.38x = 9,858,665,446.91
5. Step 5: Solve for x
   x = 9,858,665,446.91/65,802.38
6. Step 6: Final answer
   x = 149,822.33