Finding the Third Proportional to 412,426.69 and 616,303.69

Step by Step Solution

1. Step 1: Write the proportion equation
   412,426.69 : 616,303.69 = 616,303.69 : x
2. Step 2: Convert to fraction form
   412,426.69/616,303.69 = 616,303.69/x
3. Step 3: Cross multiply
   412,426.69x = 616,303.69 × 616,303.69
4. Step 4: Simplify right side
   412,426.69x = 379,830,235,226.10
5. Step 5: Solve for x
   x = 379,830,235,226.10/412,426.69
6. Step 6: Final answer
   x = 920,964.25