Finding the Third Proportional to 647,388 and 980,075

Step by Step Solution

1. Step 1: Write the proportion equation
   647,388 : 980,075 = 980,075 : x
2. Step 2: Convert to fraction form
   647,388/980,075 = 980,075/x
3. Step 3: Cross multiply
   647,388x = 980,075 × 980,075
4. Step 4: Simplify right side
   647,388x = 960,547,005,625
5. Step 5: Solve for x
   x = 960,547,005,625/647,388
6. Step 6: Final answer
   x = 1,483,726.92