Finding the Third Proportional to 1,817,129 and 2,646,813

Step by Step Solution

1. Step 1: Write the proportion equation
   1,817,129 : 2,646,813 = 2,646,813 : x
2. Step 2: Convert to fraction form
   1,817,129/2,646,813 = 2,646,813/x
3. Step 3: Cross multiply
   1,817,129x = 2,646,813 × 2,646,813
4. Step 4: Simplify right side
   1,817,129x = 7,005,619,056,969
5. Step 5: Solve for x
   x = 7,005,619,056,969/1,817,129
6. Step 6: Final answer
   x = 3,855,322.91