Finding the Third Proportional to 259,422 and 558,862.50

Step by Step Solution

1. Step 1: Write the proportion equation
   259,422 : 558,862.50 = 558,862.50 : x
2. Step 2: Convert to fraction form
   259,422/558,862.50 = 558,862.50/x
3. Step 3: Cross multiply
   259,422x = 558,862.50 × 558,862.50
4. Step 4: Simplify right side
   259,422x = 312,327,293,906.25
5. Step 5: Solve for x
   x = 312,327,293,906.25/259,422
6. Step 6: Final answer
   x = 1,203,935.26