Finding the Third Proportional to 99,389.25 and 154,065.38

Step by Step Solution

1. Step 1: Write the proportion equation
   99,389.25 : 154,065.38 = 154,065.38 : x
2. Step 2: Convert to fraction form
   99,389.25/154,065.38 = 154,065.38/x
3. Step 3: Cross multiply
   99,389.25x = 154,065.38 × 154,065.38
4. Step 4: Simplify right side
   99,389.25x = 23,736,139,773.89
5. Step 5: Solve for x
   x = 23,736,139,773.89/99,389.25
6. Step 6: Final answer
   x = 238,819.99