Finding the Third Proportional to 8,137,803 and 12,589,362

Step by Step Solution

1. Step 1: Write the proportion equation
   8,137,803 : 12,589,362 = 12,589,362 : x
2. Step 2: Convert to fraction form
   8,137,803/12,589,362 = 12,589,362/x
3. Step 3: Cross multiply
   8,137,803x = 12,589,362 × 12,589,362
4. Step 4: Simplify right side
   8,137,803x = 158,492,035,567,044
5. Step 5: Solve for x
   x = 158,492,035,567,044/8,137,803
6. Step 6: Final answer
   x = 19,476,022.65