Finding the Third Proportional to 3,970,260 and 8,590,046

Step by Step Solution

1. Step 1: Write the proportion equation
   3,970,260 : 8,590,046 = 8,590,046 : x
2. Step 2: Convert to fraction form
   3,970,260/8,590,046 = 8,590,046/x
3. Step 3: Cross multiply
   3,970,260x = 8,590,046 × 8,590,046
4. Step 4: Simplify right side
   3,970,260x = 73,788,890,282,116
5. Step 5: Solve for x
   x = 73,788,890,282,116/3,970,260
6. Step 6: Final answer
   x = 18,585,405.06