Finding the Third Proportional to 2,156,404,642 and 3,153,736,419

Step by Step Solution

1. Step 1: Write the proportion equation
   2,156,404,642 : 3,153,736,419 = 3,153,736,419 : x
2. Step 2: Convert to fraction form
   2,156,404,642/3,153,736,419 = 3,153,736,419/x
3. Step 3: Cross multiply
   2,156,404,642x = 3,153,736,419 × 3,153,736,419
4. Step 4: Simplify right side
   2,156,404,642x = 9,946,053,400,526,944,256
5. Step 5: Solve for x
   x = 9,946,053,400,526,944,256/2,156,404,642
6. Step 6: Final answer
   x = 4,612,331,659.29