Finding the Third Proportional to 985,704 and 2,118,630

Step by Step Solution

1. Step 1: Write the proportion equation
   985,704 : 2,118,630 = 2,118,630 : x
2. Step 2: Convert to fraction form
   985,704/2,118,630 = 2,118,630/x
3. Step 3: Cross multiply
   985,704x = 2,118,630 × 2,118,630
4. Step 4: Simplify right side
   985,704x = 4,488,593,076,900
5. Step 5: Solve for x
   x = 4,488,593,076,900/985,704
6. Step 6: Final answer
   x = 4,553,692.67