Finding the Third Proportional to 259,060.50 and 610,672.50

Step by Step Solution

1. Step 1: Write the proportion equation
   259,060.50 : 610,672.50 = 610,672.50 : x
2. Step 2: Convert to fraction form
   259,060.50/610,672.50 = 610,672.50/x
3. Step 3: Cross multiply
   259,060.50x = 610,672.50 × 610,672.50
4. Step 4: Simplify right side
   259,060.50x = 372,920,902,256.25
5. Step 5: Solve for x
   x = 372,920,902,256.25/259,060.50
6. Step 6: Final answer
   x = 1,439,512.79