Finding the Third Proportional to 326,784 and 707,850

Step by Step Solution

1. Step 1: Write the proportion equation
   326,784 : 707,850 = 707,850 : x
2. Step 2: Convert to fraction form
   326,784/707,850 = 707,850/x
3. Step 3: Cross multiply
   326,784x = 707,850 × 707,850
4. Step 4: Simplify right side
   326,784x = 501,051,622,500
5. Step 5: Solve for x
   x = 501,051,622,500/326,784
6. Step 6: Final answer
   x = 1,533,280.77