Finding the Third Proportional to 1,216,595,376 and 2,497,686,085.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,216,595,376 : 2,497,686,085.69 = 2,497,686,085.69 : x
2. Step 2: Convert to fraction form
   1,216,595,376/2,497,686,085.69 = 2,497,686,085.69/x
3. Step 3: Cross multiply
   1,216,595,376x = 2,497,686,085.69 × 2,497,686,085.69
4. Step 4: Simplify right side
   1,216,595,376x = 6,238,435,782,636,945,408
5. Step 5: Solve for x
   x = 6,238,435,782,636,945,408/1,216,595,376
6. Step 6: Final answer
   x = 5,127,781,927.91