Finding the Third Proportional to 1,920,402 and 4,138,232

Step by Step Solution

1. Step 1: Write the proportion equation
   1,920,402 : 4,138,232 = 4,138,232 : x
2. Step 2: Convert to fraction form
   1,920,402/4,138,232 = 4,138,232/x
3. Step 3: Cross multiply
   1,920,402x = 4,138,232 × 4,138,232
4. Step 4: Simplify right side
   1,920,402x = 17,124,964,085,824
5. Step 5: Solve for x
   x = 17,124,964,085,824/1,920,402
6. Step 6: Final answer
   x = 8,917,385.05