Finding the Third Proportional to 1,909,122 and 4,117,124

Step by Step Solution

1. Step 1: Write the proportion equation
   1,909,122 : 4,117,124 = 4,117,124 : x
2. Step 2: Convert to fraction form
   1,909,122/4,117,124 = 4,117,124/x
3. Step 3: Cross multiply
   1,909,122x = 4,117,124 × 4,117,124
4. Step 4: Simplify right side
   1,909,122x = 16,950,710,031,376
5. Step 5: Solve for x
   x = 16,950,710,031,376/1,909,122
6. Step 6: Final answer
   x = 8,878,798.75