Finding the Third Proportional to 2,564,396 and 4,060,659

Step by Step Solution

1. Step 1: Write the proportion equation
   2,564,396 : 4,060,659 = 4,060,659 : x
2. Step 2: Convert to fraction form
   2,564,396/4,060,659 = 4,060,659/x
3. Step 3: Cross multiply
   2,564,396x = 4,060,659 × 4,060,659
4. Step 4: Simplify right side
   2,564,396x = 16,488,951,514,281
5. Step 5: Solve for x
   x = 16,488,951,514,281/2,564,396
6. Step 6: Final answer
   x = 6,429,955.25