Finding the Third Proportional to 808,685,966 and 1,155,633,323

Step by Step Solution

1. Step 1: Write the proportion equation
   808,685,966 : 1,155,633,323 = 1,155,633,323 : x
2. Step 2: Convert to fraction form
   808,685,966/1,155,633,323 = 1,155,633,323/x
3. Step 3: Cross multiply
   808,685,966x = 1,155,633,323 × 1,155,633,323
4. Step 4: Simplify right side
   808,685,966x = 1,335,488,377,228,022,272
5. Step 5: Solve for x
   x = 1,335,488,377,228,022,272/808,685,966
6. Step 6: Final answer
   x = 1,651,430,138.99