Finding the Third Proportional to 49,638,816 and 77,056,560

Step by Step Solution

1. Step 1: Write the proportion equation
   49,638,816 : 77,056,560 = 77,056,560 : x
2. Step 2: Convert to fraction form
   49,638,816/77,056,560 = 77,056,560/x
3. Step 3: Cross multiply
   49,638,816x = 77,056,560 × 77,056,560
4. Step 4: Simplify right side
   49,638,816x = 5,937,713,439,033,600
5. Step 5: Solve for x
   x = 5,937,713,439,033,600/49,638,816
6. Step 6: Final answer
   x = 119,618,353.49