Finding the Third Proportional to 3,933,140 and 8,646,798

Step by Step Solution

1. Step 1: Write the proportion equation
   3,933,140 : 8,646,798 = 8,646,798 : x
2. Step 2: Convert to fraction form
   3,933,140/8,646,798 = 8,646,798/x
3. Step 3: Cross multiply
   3,933,140x = 8,646,798 × 8,646,798
4. Step 4: Simplify right side
   3,933,140x = 74,767,115,652,804
5. Step 5: Solve for x
   x = 74,767,115,652,804/3,933,140
6. Step 6: Final answer
   x = 19,009,523.09