Finding the Third Proportional to 2,118,210 and 4,609,156

Step by Step Solution

1. Step 1: Write the proportion equation
   2,118,210 : 4,609,156 = 4,609,156 : x
2. Step 2: Convert to fraction form
   2,118,210/4,609,156 = 4,609,156/x
3. Step 3: Cross multiply
   2,118,210x = 4,609,156 × 4,609,156
4. Step 4: Simplify right side
   2,118,210x = 21,244,319,032,336
5. Step 5: Solve for x
   x = 21,244,319,032,336/2,118,210
6. Step 6: Final answer
   x = 10,029,373.40