Finding the Third Proportional to 590,142 and 865,846.50

Step by Step Solution

1. Step 1: Write the proportion equation
   590,142 : 865,846.50 = 865,846.50 : x
2. Step 2: Convert to fraction form
   590,142/865,846.50 = 865,846.50/x
3. Step 3: Cross multiply
   590,142x = 865,846.50 × 865,846.50
4. Step 4: Simplify right side
   590,142x = 749,690,161,562.25
5. Step 5: Solve for x
   x = 749,690,161,562.25/590,142
6. Step 6: Final answer
   x = 1,270,355.54