Finding the Third Proportional to 1,558,478 and 2,111,924

Step by Step Solution

1. Step 1: Write the proportion equation
   1,558,478 : 2,111,924 = 2,111,924 : x
2. Step 2: Convert to fraction form
   1,558,478/2,111,924 = 2,111,924/x
3. Step 3: Cross multiply
   1,558,478x = 2,111,924 × 2,111,924
4. Step 4: Simplify right side
   1,558,478x = 4,460,222,981,776
5. Step 5: Solve for x
   x = 4,460,222,981,776/1,558,478
6. Step 6: Final answer
   x = 2,861,909.49