Finding the Third Proportional to 1,316,164 and 1,990,446

Step by Step Solution

1. Step 1: Write the proportion equation
   1,316,164 : 1,990,446 = 1,990,446 : x
2. Step 2: Convert to fraction form
   1,316,164/1,990,446 = 1,990,446/x
3. Step 3: Cross multiply
   1,316,164x = 1,990,446 × 1,990,446
4. Step 4: Simplify right side
   1,316,164x = 3,961,875,278,916
5. Step 5: Solve for x
   x = 3,961,875,278,916/1,316,164
6. Step 6: Final answer
   x = 3,010,168.40