Finding the Third Proportional to 2,142,042 and 4,636,740

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142,042 : 4,636,740 = 4,636,740 : x
2. Step 2: Convert to fraction form
   2,142,042/4,636,740 = 4,636,740/x
3. Step 3: Cross multiply
   2,142,042x = 4,636,740 × 4,636,740
4. Step 4: Simplify right side
   2,142,042x = 21,499,357,827,600
5. Step 5: Solve for x
   x = 21,499,357,827,600/2,142,042
6. Step 6: Final answer
   x = 10,036,851.67