Finding the Third Proportional to 643,362 and 1,375,074

Step by Step Solution

1. Step 1: Write the proportion equation
   643,362 : 1,375,074 = 1,375,074 : x
2. Step 2: Convert to fraction form
   643,362/1,375,074 = 1,375,074/x
3. Step 3: Cross multiply
   643,362x = 1,375,074 × 1,375,074
4. Step 4: Simplify right side
   643,362x = 1,890,828,505,476
5. Step 5: Solve for x
   x = 1,890,828,505,476/643,362
6. Step 6: Final answer
   x = 2,938,980.71