Finding the Third Proportional to 866,566 and 1,870,143

Step by Step Solution

1. Step 1: Write the proportion equation
   866,566 : 1,870,143 = 1,870,143 : x
2. Step 2: Convert to fraction form
   866,566/1,870,143 = 1,870,143/x
3. Step 3: Cross multiply
   866,566x = 1,870,143 × 1,870,143
4. Step 4: Simplify right side
   866,566x = 3,497,434,840,449
5. Step 5: Solve for x
   x = 3,497,434,840,449/866,566
6. Step 6: Final answer
   x = 4,035,970.53