Finding the Third Proportional to 70,647 and 99,011.50

Step by Step Solution

1. Step 1: Write the proportion equation
   70,647 : 99,011.50 = 99,011.50 : x
2. Step 2: Convert to fraction form
   70,647/99,011.50 = 99,011.50/x
3. Step 3: Cross multiply
   70,647x = 99,011.50 × 99,011.50
4. Step 4: Simplify right side
   70,647x = 9,803,277,132.25
5. Step 5: Solve for x
   x = 9,803,277,132.25/70,647
6. Step 6: Final answer
   x = 138,764.24