Finding the Third Proportional to 3,186,810 and 4,877,172

Step by Step Solution

1. Step 1: Write the proportion equation
   3,186,810 : 4,877,172 = 4,877,172 : x
2. Step 2: Convert to fraction form
   3,186,810/4,877,172 = 4,877,172/x
3. Step 3: Cross multiply
   3,186,810x = 4,877,172 × 4,877,172
4. Step 4: Simplify right side
   3,186,810x = 23,786,806,717,584
5. Step 5: Solve for x
   x = 23,786,806,717,584/3,186,810
6. Step 6: Final answer
   x = 7,464,143.37