Finding the Third Proportional to 864,346 and 1,308,449

Step by Step Solution

1. Step 1: Write the proportion equation
   864,346 : 1,308,449 = 1,308,449 : x
2. Step 2: Convert to fraction form
   864,346/1,308,449 = 1,308,449/x
3. Step 3: Cross multiply
   864,346x = 1,308,449 × 1,308,449
4. Step 4: Simplify right side
   864,346x = 1,712,038,785,601
5. Step 5: Solve for x
   x = 1,712,038,785,601/864,346
6. Step 6: Final answer
   x = 1,980,733.16