Finding the Third Proportional to 1,224,210 and 1,871,387

Step by Step Solution

1. Step 1: Write the proportion equation
   1,224,210 : 1,871,387 = 1,871,387 : x
2. Step 2: Convert to fraction form
   1,224,210/1,871,387 = 1,871,387/x
3. Step 3: Cross multiply
   1,224,210x = 1,871,387 × 1,871,387
4. Step 4: Simplify right side
   1,224,210x = 3,502,089,303,769
5. Step 5: Solve for x
   x = 3,502,089,303,769/1,224,210
6. Step 6: Final answer
   x = 2,860,693.27