Finding the Third Proportional to 3,953,988 and 8,633,070

Step by Step Solution

1. Step 1: Write the proportion equation
   3,953,988 : 8,633,070 = 8,633,070 : x
2. Step 2: Convert to fraction form
   3,953,988/8,633,070 = 8,633,070/x
3. Step 3: Cross multiply
   3,953,988x = 8,633,070 × 8,633,070
4. Step 4: Simplify right side
   3,953,988x = 74,529,897,624,900
5. Step 5: Solve for x
   x = 74,529,897,624,900/3,953,988
6. Step 6: Final answer
   x = 18,849,297.88