Finding the Third Proportional to 648,630 and 1,381,454

Step by Step Solution

1. Step 1: Write the proportion equation
   648,630 : 1,381,454 = 1,381,454 : x
2. Step 2: Convert to fraction form
   648,630/1,381,454 = 1,381,454/x
3. Step 3: Cross multiply
   648,630x = 1,381,454 × 1,381,454
4. Step 4: Simplify right side
   648,630x = 1,908,415,154,116
5. Step 5: Solve for x
   x = 1,908,415,154,116/648,630
6. Step 6: Final answer
   x = 2,942,224.62