Finding the Third Proportional to 8,509,770 and 12,734,581.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,509,770 : 12,734,581.50 = 12,734,581.50 : x
2. Step 2: Convert to fraction form
   8,509,770/12,734,581.50 = 12,734,581.50/x
3. Step 3: Cross multiply
   8,509,770x = 12,734,581.50 × 12,734,581.50
4. Step 4: Simplify right side
   8,509,770x = 162,169,565,980,142.25
5. Step 5: Solve for x
   x = 162,169,565,980,142.25/8,509,770
6. Step 6: Final answer
   x = 19,056,868.28