Finding the Third Proportional to 429,142,878 and 926,890,839

Step by Step Solution

1. Step 1: Write the proportion equation
   429,142,878 : 926,890,839 = 926,890,839 : x
2. Step 2: Convert to fraction form
   429,142,878/926,890,839 = 926,890,839/x
3. Step 3: Cross multiply
   429,142,878x = 926,890,839 × 926,890,839
4. Step 4: Simplify right side
   429,142,878x = 859,126,627,422,123,904
5. Step 5: Solve for x
   x = 859,126,627,422,123,904/429,142,878
6. Step 6: Final answer
   x = 2,001,959,420.66