Finding the Third Proportional to 342,793 and 742,788

Step by Step Solution

1. Step 1: Write the proportion equation
   342,793 : 742,788 = 742,788 : x
2. Step 2: Convert to fraction form
   342,793/742,788 = 742,788/x
3. Step 3: Cross multiply
   342,793x = 742,788 × 742,788
4. Step 4: Simplify right side
   342,793x = 551,734,012,944
5. Step 5: Solve for x
   x = 551,734,012,944/342,793
6. Step 6: Final answer
   x = 1,609,525.32