Finding the Third Proportional to 489,844.50 and 742,148

Step by Step Solution

1. Step 1: Write the proportion equation
   489,844.50 : 742,148 = 742,148 : x
2. Step 2: Convert to fraction form
   489,844.50/742,148 = 742,148/x
3. Step 3: Cross multiply
   489,844.50x = 742,148 × 742,148
4. Step 4: Simplify right side
   489,844.50x = 550,783,653,904
5. Step 5: Solve for x
   x = 550,783,653,904/489,844.50
6. Step 6: Final answer
   x = 1,124,405.10