Finding the Third Proportional to 13,329,815,307 and 28,665,721,974

Step by Step Solution

1. Step 1: Write the proportion equation
   13,329,815,307 : 28,665,721,974 = 28,665,721,974 : x
2. Step 2: Convert to fraction form
   13,329,815,307/28,665,721,974 = 28,665,721,974/x
3. Step 3: Cross multiply
   13,329,815,307x = 28,665,721,974 × 28,665,721,974
4. Step 4: Simplify right side
   13,329,815,307x = 821,723,616,290,666,446,848
5. Step 5: Solve for x
   x = 821,723,616,290,666,446,848/13,329,815,307
6. Step 6: Final answer
   x = 61,645,536,518.36