Finding the Third Proportional to 1,288,130 and 3,030,917

Step by Step Solution

1. Step 1: Write the proportion equation
   1,288,130 : 3,030,917 = 3,030,917 : x
2. Step 2: Convert to fraction form
   1,288,130/3,030,917 = 3,030,917/x
3. Step 3: Cross multiply
   1,288,130x = 3,030,917 × 3,030,917
4. Step 4: Simplify right side
   1,288,130x = 9,186,457,860,889
5. Step 5: Solve for x
   x = 9,186,457,860,889/1,288,130
6. Step 6: Final answer
   x = 7,131,623.25