Finding the Third Proportional to 70,488 and 102,919.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,488 : 102,919.50 = 102,919.50 : x
2. Step 2: Convert to fraction form
   70,488/102,919.50 = 102,919.50/x
3. Step 3: Cross multiply
   70,488x = 102,919.50 × 102,919.50
4. Step 4: Simplify right side
   70,488x = 10,592,423,480.25
5. Step 5: Solve for x
   x = 10,592,423,480.25/70,488
6. Step 6: Final answer
   x = 150,272.72