Finding the Third Proportional to 1,381,680 and 2,973,310

Step by Step Solution

1. Step 1: Write the proportion equation
   1,381,680 : 2,973,310 = 2,973,310 : x
2. Step 2: Convert to fraction form
   1,381,680/2,973,310 = 2,973,310/x
3. Step 3: Cross multiply
   1,381,680x = 2,973,310 × 2,973,310
4. Step 4: Simplify right side
   1,381,680x = 8,840,572,356,100
5. Step 5: Solve for x
   x = 8,840,572,356,100/1,381,680
6. Step 6: Final answer
   x = 6,398,422.47