Finding the Third Proportional to 860,573 and 1,870,402

Step by Step Solution

1. Step 1: Write the proportion equation
   860,573 : 1,870,402 = 1,870,402 : x
2. Step 2: Convert to fraction form
   860,573/1,870,402 = 1,870,402/x
3. Step 3: Cross multiply
   860,573x = 1,870,402 × 1,870,402
4. Step 4: Simplify right side
   860,573x = 3,498,403,641,604
5. Step 5: Solve for x
   x = 3,498,403,641,604/860,573
6. Step 6: Final answer
   x = 4,065,202.65