Finding the Third Proportional to 1,554,072 and 3,185,178

Step by Step Solution

1. Step 1: Write the proportion equation
   1,554,072 : 3,185,178 = 3,185,178 : x
2. Step 2: Convert to fraction form
   1,554,072/3,185,178 = 3,185,178/x
3. Step 3: Cross multiply
   1,554,072x = 3,185,178 × 3,185,178
4. Step 4: Simplify right side
   1,554,072x = 10,145,358,891,684
5. Step 5: Solve for x
   x = 10,145,358,891,684/1,554,072
6. Step 6: Final answer
   x = 6,528,242.51