Finding the Third Proportional to 8,886,789 and 13,454,815.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,886,789 : 13,454,815.50 = 13,454,815.50 : x
2. Step 2: Convert to fraction form
   8,886,789/13,454,815.50 = 13,454,815.50/x
3. Step 3: Cross multiply
   8,886,789x = 13,454,815.50 × 13,454,815.50
4. Step 4: Simplify right side
   8,886,789x = 181,032,060,139,040.25
5. Step 5: Solve for x
   x = 181,032,060,139,040.25/8,886,789
6. Step 6: Final answer
   x = 20,370,919.14