Finding the Third Proportional to 860,570 and 1,866,292

Step by Step Solution

1. Step 1: Write the proportion equation
   860,570 : 1,866,292 = 1,866,292 : x
2. Step 2: Convert to fraction form
   860,570/1,866,292 = 1,866,292/x
3. Step 3: Cross multiply
   860,570x = 1,866,292 × 1,866,292
4. Step 4: Simplify right side
   860,570x = 3,483,045,829,264
5. Step 5: Solve for x
   x = 3,483,045,829,264/860,570
6. Step 6: Final answer
   x = 4,047,370.73