Finding the Third Proportional to 612,411 and 1,298,944.50

Step by Step Solution

1. Step 1: Write the proportion equation
   612,411 : 1,298,944.50 = 1,298,944.50 : x
2. Step 2: Convert to fraction form
   612,411/1,298,944.50 = 1,298,944.50/x
3. Step 3: Cross multiply
   612,411x = 1,298,944.50 × 1,298,944.50
4. Step 4: Simplify right side
   612,411x = 1,687,256,814,080.25
5. Step 5: Solve for x
   x = 1,687,256,814,080.25/612,411
6. Step 6: Final answer
   x = 2,755,105.34