Finding the Third Proportional to 8,382,087 and 12,813,705

Step by Step Solution

1. Step 1: Write the proportion equation
   8,382,087 : 12,813,705 = 12,813,705 : x
2. Step 2: Convert to fraction form
   8,382,087/12,813,705 = 12,813,705/x
3. Step 3: Cross multiply
   8,382,087x = 12,813,705 × 12,813,705
4. Step 4: Simplify right side
   8,382,087x = 164,191,035,827,025
5. Step 5: Solve for x
   x = 164,191,035,827,025/8,382,087
6. Step 6: Final answer
   x = 19,588,323.99