Finding the Third Proportional to 9,919,360 and 21,029,248

Step by Step Solution

1. Step 1: Write the proportion equation
   9,919,360 : 21,029,248 = 21,029,248 : x
2. Step 2: Convert to fraction form
   9,919,360/21,029,248 = 21,029,248/x
3. Step 3: Cross multiply
   9,919,360x = 21,029,248 × 21,029,248
4. Step 4: Simplify right side
   9,919,360x = 442,229,271,445,504
5. Step 5: Solve for x
   x = 442,229,271,445,504/9,919,360
6. Step 6: Final answer
   x = 44,582,439.94