Finding the Third Proportional to 867,972 and 1,878,650

Step by Step Solution

1. Step 1: Write the proportion equation
   867,972 : 1,878,650 = 1,878,650 : x
2. Step 2: Convert to fraction form
   867,972/1,878,650 = 1,878,650/x
3. Step 3: Cross multiply
   867,972x = 1,878,650 × 1,878,650
4. Step 4: Simplify right side
   867,972x = 3,529,325,822,500
5. Step 5: Solve for x
   x = 3,529,325,822,500/867,972
6. Step 6: Final answer
   x = 4,066,174.74