Finding the Third Proportional to 60,078,891 and 123,342,721.50

Step by Step Solution

1. Step 1: Write the proportion equation
   60,078,891 : 123,342,721.50 = 123,342,721.50 : x
2. Step 2: Convert to fraction form
   60,078,891/123,342,721.50 = 123,342,721.50/x
3. Step 3: Cross multiply
   60,078,891x = 123,342,721.50 × 123,342,721.50
4. Step 4: Simplify right side
   60,078,891x = 15,213,426,947,026,562
5. Step 5: Solve for x
   x = 15,213,426,947,026,562/60,078,891
6. Step 6: Final answer
   x = 253,224,163.99