Finding the Third Proportional to 670,378 and 1,445,708

Step by Step Solution

1. Step 1: Write the proportion equation
   670,378 : 1,445,708 = 1,445,708 : x
2. Step 2: Convert to fraction form
   670,378/1,445,708 = 1,445,708/x
3. Step 3: Cross multiply
   670,378x = 1,445,708 × 1,445,708
4. Step 4: Simplify right side
   670,378x = 2,090,071,621,264
5. Step 5: Solve for x
   x = 2,090,071,621,264/670,378
6. Step 6: Final answer
   x = 3,117,750.91