Finding the Third Proportional to 70,358.63 and 154,389.38

Step by Step Solution

1. Step 1: Write the proportion equation
   70,358.63 : 154,389.38 = 154,389.38 : x
2. Step 2: Convert to fraction form
   70,358.63/154,389.38 = 154,389.38/x
3. Step 3: Cross multiply
   70,358.63x = 154,389.38 × 154,389.38
4. Step 4: Simplify right side
   70,358.63x = 23,836,079,112.89
5. Step 5: Solve for x
   x = 23,836,079,112.89/70,358.63
6. Step 6: Final answer
   x = 338,779.77