Finding the Third Proportional to 8,509,653 and 12,773,185.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,509,653 : 12,773,185.50 = 12,773,185.50 : x
2. Step 2: Convert to fraction form
   8,509,653/12,773,185.50 = 12,773,185.50/x
3. Step 3: Cross multiply
   8,509,653x = 12,773,185.50 × 12,773,185.50
4. Step 4: Simplify right side
   8,509,653x = 163,154,267,817,410.25
5. Step 5: Solve for x
   x = 163,154,267,817,410.25/8,509,653
6. Step 6: Final answer
   x = 19,172,846.16