Finding the Third Proportional to 873,630 and 1,908,900

Step by Step Solution

1. Step 1: Write the proportion equation
   873,630 : 1,908,900 = 1,908,900 : x
2. Step 2: Convert to fraction form
   873,630/1,908,900 = 1,908,900/x
3. Step 3: Cross multiply
   873,630x = 1,908,900 × 1,908,900
4. Step 4: Simplify right side
   873,630x = 3,643,899,210,000
5. Step 5: Solve for x
   x = 3,643,899,210,000/873,630
6. Step 6: Final answer
   x = 4,170,986.81