Finding the Third Proportional to 743,499 and 1,181,678.63

Step by Step Solution

1. Step 1: Write the proportion equation
   743,499 : 1,181,678.63 = 1,181,678.63 : x
2. Step 2: Convert to fraction form
   743,499/1,181,678.63 = 1,181,678.63/x
3. Step 3: Cross multiply
   743,499x = 1,181,678.63 × 1,181,678.63
4. Step 4: Simplify right side
   743,499x = 1,396,364,372,781.89
5. Step 5: Solve for x
   x = 1,396,364,372,781.89/743,499
6. Step 6: Final answer
   x = 1,878,098.52