Finding the Third Proportional to 1,920,404 and 4,138,236

Step by Step Solution

1. Step 1: Write the proportion equation
   1,920,404 : 4,138,236 = 4,138,236 : x
2. Step 2: Convert to fraction form
   1,920,404/4,138,236 = 4,138,236/x
3. Step 3: Cross multiply
   1,920,404x = 4,138,236 × 4,138,236
4. Step 4: Simplify right side
   1,920,404x = 17,124,997,191,696
5. Step 5: Solve for x
   x = 17,124,997,191,696/1,920,404
6. Step 6: Final answer
   x = 8,917,393.00