Finding the Third Proportional to 847,142 and 1,860,172

Step by Step Solution

1. Step 1: Write the proportion equation
   847,142 : 1,860,172 = 1,860,172 : x
2. Step 2: Convert to fraction form
   847,142/1,860,172 = 1,860,172/x
3. Step 3: Cross multiply
   847,142x = 1,860,172 × 1,860,172
4. Step 4: Simplify right side
   847,142x = 3,460,239,869,584
5. Step 5: Solve for x
   x = 3,460,239,869,584/847,142
6. Step 6: Final answer
   x = 4,084,604.32