Finding the Third Proportional to 1,509,521 and 3,298,978

Step by Step Solution

1. Step 1: Write the proportion equation
   1,509,521 : 3,298,978 = 3,298,978 : x
2. Step 2: Convert to fraction form
   1,509,521/3,298,978 = 3,298,978/x
3. Step 3: Cross multiply
   1,509,521x = 3,298,978 × 3,298,978
4. Step 4: Simplify right side
   1,509,521x = 10,883,255,844,484
5. Step 5: Solve for x
   x = 10,883,255,844,484/1,509,521
6. Step 6: Final answer
   x = 7,209,741.27