Finding the Third Proportional to 748,615.50 and 1,609,321.50

Step by Step Solution

1. Step 1: Write the proportion equation
   748,615.50 : 1,609,321.50 = 1,609,321.50 : x
2. Step 2: Convert to fraction form
   748,615.50/1,609,321.50 = 1,609,321.50/x
3. Step 3: Cross multiply
   748,615.50x = 1,609,321.50 × 1,609,321.50
4. Step 4: Simplify right side
   748,615.50x = 2,589,915,690,362.25
5. Step 5: Solve for x
   x = 2,589,915,690,362.25/748,615.50
6. Step 6: Final answer
   x = 3,459,607.36