Finding the Third Proportional to 70,139 and 153,868

Step by Step Solution

1. Step 1: Write the proportion equation
   70,139 : 153,868 = 153,868 : x
2. Step 2: Convert to fraction form
   70,139/153,868 = 153,868/x
3. Step 3: Cross multiply
   70,139x = 153,868 × 153,868
4. Step 4: Simplify right side
   70,139x = 23,675,361,424
5. Step 5: Solve for x
   x = 23,675,361,424/70,139
6. Step 6: Final answer
   x = 337,549.17