Finding the Third Proportional to 918,612 and 1,970,112

Step by Step Solution

1. Step 1: Write the proportion equation
   918,612 : 1,970,112 = 1,970,112 : x
2. Step 2: Convert to fraction form
   918,612/1,970,112 = 1,970,112/x
3. Step 3: Cross multiply
   918,612x = 1,970,112 × 1,970,112
4. Step 4: Simplify right side
   918,612x = 3,881,341,292,544
5. Step 5: Solve for x
   x = 3,881,341,292,544/918,612
6. Step 6: Final answer
   x = 4,225,223.81