Finding the Third Proportional to 1,010,290 and 1,374,191

Step by Step Solution

1. Step 1: Write the proportion equation
   1,010,290 : 1,374,191 = 1,374,191 : x
2. Step 2: Convert to fraction form
   1,010,290/1,374,191 = 1,374,191/x
3. Step 3: Cross multiply
   1,010,290x = 1,374,191 × 1,374,191
4. Step 4: Simplify right side
   1,010,290x = 1,888,400,904,481
5. Step 5: Solve for x
   x = 1,888,400,904,481/1,010,290
6. Step 6: Final answer
   x = 1,869,167.17