Finding the Third Proportional to 489,853.50 and 742,164

Step by Step Solution

1. Step 1: Write the proportion equation
   489,853.50 : 742,164 = 742,164 : x
2. Step 2: Convert to fraction form
   489,853.50/742,164 = 742,164/x
3. Step 3: Cross multiply
   489,853.50x = 742,164 × 742,164
4. Step 4: Simplify right side
   489,853.50x = 550,807,402,896
5. Step 5: Solve for x
   x = 550,807,402,896/489,853.50
6. Step 6: Final answer
   x = 1,124,432.92