Finding the Third Proportional to 259,076 and 561,160

Step by Step Solution

1. Step 1: Write the proportion equation
   259,076 : 561,160 = 561,160 : x
2. Step 2: Convert to fraction form
   259,076/561,160 = 561,160/x
3. Step 3: Cross multiply
   259,076x = 561,160 × 561,160
4. Step 4: Simplify right side
   259,076x = 314,900,545,600
5. Step 5: Solve for x
   x = 314,900,545,600/259,076
6. Step 6: Final answer
   x = 1,215,475.56