Finding the Third Proportional to 3,810,819 and 8,174,221

Step by Step Solution

1. Step 1: Write the proportion equation
   3,810,819 : 8,174,221 = 8,174,221 : x
2. Step 2: Convert to fraction form
   3,810,819/8,174,221 = 8,174,221/x
3. Step 3: Cross multiply
   3,810,819x = 8,174,221 × 8,174,221
4. Step 4: Simplify right side
   3,810,819x = 66,817,888,956,841
5. Step 5: Solve for x
   x = 66,817,888,956,841/3,810,819
6. Step 6: Final answer
   x = 17,533,734.60