Finding the Third Proportional to 342,785 and 742,776.50

Step by Step Solution

1. Step 1: Write the proportion equation
   342,785 : 742,776.50 = 742,776.50 : x
2. Step 2: Convert to fraction form
   342,785/742,776.50 = 742,776.50/x
3. Step 3: Cross multiply
   342,785x = 742,776.50 × 742,776.50
4. Step 4: Simplify right side
   342,785x = 551,716,928,952.25
5. Step 5: Solve for x
   x = 551,716,928,952.25/342,785
6. Step 6: Final answer
   x = 1,609,513.04