Finding the Third Proportional to 722,564 and 1,588,140

Step by Step Solution

1. Step 1: Write the proportion equation
   722,564 : 1,588,140 = 1,588,140 : x
2. Step 2: Convert to fraction form
   722,564/1,588,140 = 1,588,140/x
3. Step 3: Cross multiply
   722,564x = 1,588,140 × 1,588,140
4. Step 4: Simplify right side
   722,564x = 2,522,188,659,600
5. Step 5: Solve for x
   x = 2,522,188,659,600/722,564
6. Step 6: Final answer
   x = 3,490,609.36