Finding the Third Proportional to 8,509,617 and 12,773,139.33

Step by Step Solution

1. Step 1: Write the proportion equation
   8,509,617 : 12,773,139.33 = 12,773,139.33 : x
2. Step 2: Convert to fraction form
   8,509,617/12,773,139.33 = 12,773,139.33/x
3. Step 3: Cross multiply
   8,509,617x = 12,773,139.33 × 12,773,139.33
4. Step 4: Simplify right side
   8,509,617x = 163,153,088,295,719.12
5. Step 5: Solve for x
   x = 163,153,088,295,719.12/8,509,617
6. Step 6: Final answer
   x = 19,172,788.66