Finding the Third Proportional to 456,069 and 715,422

Step by Step Solution

1. Step 1: Write the proportion equation
   456,069 : 715,422 = 715,422 : x
2. Step 2: Convert to fraction form
   456,069/715,422 = 715,422/x
3. Step 3: Cross multiply
   456,069x = 715,422 × 715,422
4. Step 4: Simplify right side
   456,069x = 511,828,638,084
5. Step 5: Solve for x
   x = 511,828,638,084/456,069
6. Step 6: Final answer
   x = 1,122,261.41