Finding the Third Proportional to 1,840,644 and 3,937,140

Step by Step Solution

1. Step 1: Write the proportion equation
   1,840,644 : 3,937,140 = 3,937,140 : x
2. Step 2: Convert to fraction form
   1,840,644/3,937,140 = 3,937,140/x
3. Step 3: Cross multiply
   1,840,644x = 3,937,140 × 3,937,140
4. Step 4: Simplify right side
   1,840,644x = 15,501,071,379,600
5. Step 5: Solve for x
   x = 15,501,071,379,600/1,840,644
6. Step 6: Final answer
   x = 8,421,547.77