Finding the Third Proportional to 66,100.50 and 99,297.38

Step by Step Solution

1. Step 1: Write the proportion equation
   66,100.50 : 99,297.38 = 99,297.38 : x
2. Step 2: Convert to fraction form
   66,100.50/99,297.38 = 99,297.38/x
3. Step 3: Cross multiply
   66,100.50x = 99,297.38 × 99,297.38
4. Step 4: Simplify right side
   66,100.50x = 9,859,968,681.89
5. Step 5: Solve for x
   x = 9,859,968,681.89/66,100.50
6. Step 6: Final answer
   x = 149,166.33