Finding the Third Proportional to 860,572 and 1,866,296

Step by Step Solution

1. Step 1: Write the proportion equation
   860,572 : 1,866,296 = 1,866,296 : x
2. Step 2: Convert to fraction form
   860,572/1,866,296 = 1,866,296/x
3. Step 3: Cross multiply
   860,572x = 1,866,296 × 1,866,296
4. Step 4: Simplify right side
   860,572x = 3,483,060,759,616
5. Step 5: Solve for x
   x = 3,483,060,759,616/860,572
6. Step 6: Final answer
   x = 4,047,378.67