Finding the Third Proportional to 909,126 and 1,912,212

Step by Step Solution

1. Step 1: Write the proportion equation
   909,126 : 1,912,212 = 1,912,212 : x
2. Step 2: Convert to fraction form
   909,126/1,912,212 = 1,912,212/x
3. Step 3: Cross multiply
   909,126x = 1,912,212 × 1,912,212
4. Step 4: Simplify right side
   909,126x = 3,656,554,732,944
5. Step 5: Solve for x
   x = 3,656,554,732,944/909,126
6. Step 6: Final answer
   x = 4,022,054.95