Finding the Third Proportional to 489,749 and 742,030.50

Step by Step Solution

1. Step 1: Write the proportion equation
   489,749 : 742,030.50 = 742,030.50 : x
2. Step 2: Convert to fraction form
   489,749/742,030.50 = 742,030.50/x
3. Step 3: Cross multiply
   489,749x = 742,030.50 × 742,030.50
4. Step 4: Simplify right side
   489,749x = 550,609,262,930.25
5. Step 5: Solve for x
   x = 550,609,262,930.25/489,749
6. Step 6: Final answer
   x = 1,124,268.27