Finding the Third Proportional to 1,312,101 and 2,142,558

Step by Step Solution

1. Step 1: Write the proportion equation
   1,312,101 : 2,142,558 = 2,142,558 : x
2. Step 2: Convert to fraction form
   1,312,101/2,142,558 = 2,142,558/x
3. Step 3: Cross multiply
   1,312,101x = 2,142,558 × 2,142,558
4. Step 4: Simplify right side
   1,312,101x = 4,590,554,783,364
5. Step 5: Solve for x
   x = 4,590,554,783,364/1,312,101
6. Step 6: Final answer
   x = 3,498,629.13