Finding the Third Proportional to 864,344 and 1,308,446

Step by Step Solution

1. Step 1: Write the proportion equation
   864,344 : 1,308,446 = 1,308,446 : x
2. Step 2: Convert to fraction form
   864,344/1,308,446 = 1,308,446/x
3. Step 3: Cross multiply
   864,344x = 1,308,446 × 1,308,446
4. Step 4: Simplify right side
   864,344x = 1,712,030,934,916
5. Step 5: Solve for x
   x = 1,712,030,934,916/864,344
6. Step 6: Final answer
   x = 1,980,728.66