Finding the Third Proportional to 1,638,105,786 and 2,317,869,459

Step by Step Solution

1. Step 1: Write the proportion equation
   1,638,105,786 : 2,317,869,459 = 2,317,869,459 : x
2. Step 2: Convert to fraction form
   1,638,105,786/2,317,869,459 = 2,317,869,459/x
3. Step 3: Cross multiply
   1,638,105,786x = 2,317,869,459 × 2,317,869,459
4. Step 4: Simplify right side
   1,638,105,786x = 5,372,518,828,964,953,088
5. Step 5: Solve for x
   x = 5,372,518,828,964,953,088/1,638,105,786
6. Step 6: Final answer
   x = 3,279,714,213.14