Finding the Third Proportional to 3,610,140 and 7,842,738

Step by Step Solution

1. Step 1: Write the proportion equation
   3,610,140 : 7,842,738 = 7,842,738 : x
2. Step 2: Convert to fraction form
   3,610,140/7,842,738 = 7,842,738/x
3. Step 3: Cross multiply
   3,610,140x = 7,842,738 × 7,842,738
4. Step 4: Simplify right side
   3,610,140x = 61,508,539,336,644
5. Step 5: Solve for x
   x = 61,508,539,336,644/3,610,140
6. Step 6: Final answer
   x = 17,037,715.81