Finding the Third Proportional to 1,558,789 and 3,349,642

Step by Step Solution

1. Step 1: Write the proportion equation
   1,558,789 : 3,349,642 = 3,349,642 : x
2. Step 2: Convert to fraction form
   1,558,789/3,349,642 = 3,349,642/x
3. Step 3: Cross multiply
   1,558,789x = 3,349,642 × 3,349,642
4. Step 4: Simplify right side
   1,558,789x = 11,220,101,528,164
5. Step 5: Solve for x
   x = 11,220,101,528,164/1,558,789
6. Step 6: Final answer
   x = 7,197,960.42