Finding the Third Proportional to 3,516,988 and 7,621,068

Step by Step Solution

1. Step 1: Write the proportion equation
   3,516,988 : 7,621,068 = 7,621,068 : x
2. Step 2: Convert to fraction form
   3,516,988/7,621,068 = 7,621,068/x
3. Step 3: Cross multiply
   3,516,988x = 7,621,068 × 7,621,068
4. Step 4: Simplify right side
   3,516,988x = 58,080,677,460,624
5. Step 5: Solve for x
   x = 58,080,677,460,624/3,516,988
6. Step 6: Final answer
   x = 16,514,323.47