Finding the Third Proportional to 51,689,368 and 80,026,494

Step by Step Solution

1. Step 1: Write the proportion equation
   51,689,368 : 80,026,494 = 80,026,494 : x
2. Step 2: Convert to fraction form
   51,689,368/80,026,494 = 80,026,494/x
3. Step 3: Cross multiply
   51,689,368x = 80,026,494 × 80,026,494
4. Step 4: Simplify right side
   51,689,368x = 6,404,239,741,932,036
5. Step 5: Solve for x
   x = 6,404,239,741,932,036/51,689,368
6. Step 6: Final answer
   x = 123,898,588.62