Finding the Third Proportional to 766,429 and 1,612,256

Step by Step Solution

1. Step 1: Write the proportion equation
   766,429 : 1,612,256 = 1,612,256 : x
2. Step 2: Convert to fraction form
   766,429/1,612,256 = 1,612,256/x
3. Step 3: Cross multiply
   766,429x = 1,612,256 × 1,612,256
4. Step 4: Simplify right side
   766,429x = 2,599,369,409,536
5. Step 5: Solve for x
   x = 2,599,369,409,536/766,429
6. Step 6: Final answer
   x = 3,391,533.21