Finding the Third Proportional to 1,205,145 and 1,820,070

Step by Step Solution

1. Step 1: Write the proportion equation
   1,205,145 : 1,820,070 = 1,820,070 : x
2. Step 2: Convert to fraction form
   1,205,145/1,820,070 = 1,820,070/x
3. Step 3: Cross multiply
   1,205,145x = 1,820,070 × 1,820,070
4. Step 4: Simplify right side
   1,205,145x = 3,312,654,804,900
5. Step 5: Solve for x
   x = 3,312,654,804,900/1,205,145
6. Step 6: Final answer
   x = 2,748,760.36