Finding the Third Proportional to 70,012 and 148,658

Step by Step Solution

1. Step 1: Write the proportion equation
   70,012 : 148,658 = 148,658 : x
2. Step 2: Convert to fraction form
   70,012/148,658 = 148,658/x
3. Step 3: Cross multiply
   70,012x = 148,658 × 148,658
4. Step 4: Simplify right side
   70,012x = 22,099,200,964
5. Step 5: Solve for x
   x = 22,099,200,964/70,012
6. Step 6: Final answer
   x = 315,648.76