Finding the Third Proportional to 1,892,799,315.28 and 4,381,487,695.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,892,799,315.28 : 4,381,487,695.69 = 4,381,487,695.69 : x
2. Step 2: Convert to fraction form
   1,892,799,315.28/4,381,487,695.69 = 4,381,487,695.69/x
3. Step 3: Cross multiply
   1,892,799,315.28x = 4,381,487,695.69 × 4,381,487,695.69
4. Step 4: Simplify right side
   1,892,799,315.28x = 19,197,434,427,460,960,256
5. Step 5: Solve for x
   x = 19,197,434,427,460,960,256/1,892,799,315.28
6. Step 6: Final answer
   x = 10,142,350,682.65