Finding the Third Proportional to 1,921,186 and 4,127,290

Step by Step Solution

1. Step 1: Write the proportion equation
   1,921,186 : 4,127,290 = 4,127,290 : x
2. Step 2: Convert to fraction form
   1,921,186/4,127,290 = 4,127,290/x
3. Step 3: Cross multiply
   1,921,186x = 4,127,290 × 4,127,290
4. Step 4: Simplify right side
   1,921,186x = 17,034,522,744,100
5. Step 5: Solve for x
   x = 17,034,522,744,100/1,921,186
6. Step 6: Final answer
   x = 8,866,670.25