Finding the Third Proportional to 811,063,578.38 and 1,665,124,047

Step by Step Solution

1. Step 1: Write the proportion equation
   811,063,578.38 : 1,665,124,047 = 1,665,124,047 : x
2. Step 2: Convert to fraction form
   811,063,578.38/1,665,124,047 = 1,665,124,047/x
3. Step 3: Cross multiply
   811,063,578.38x = 1,665,124,047 × 1,665,124,047
4. Step 4: Simplify right side
   811,063,578.38x = 2,772,638,091,897,658,368
5. Step 5: Solve for x
   x = 2,772,638,091,897,658,368/811,063,578.38
6. Step 6: Final answer
   x = 3,418,521,267.41