Finding the Third Proportional to 121,086,827,697.38 and 259,445,037,846.09

Step by Step Solution

1. Step 1: Write the proportion equation
   121,086,827,697.38 : 259,445,037,846.09 = 259,445,037,846.09 : x
2. Step 2: Convert to fraction form
   121,086,827,697.38/259,445,037,846.09 = 259,445,037,846.09/x
3. Step 3: Cross multiply
   121,086,827,697.38x = 259,445,037,846.09 × 259,445,037,846.09
4. Step 4: Simplify right side
   121,086,827,697.38x = 67,311,727,662,959,071,068,160
5. Step 5: Solve for x
   x = 67,311,727,662,959,071,068,160/121,086,827,697.38
6. Step 6: Final answer
   x = 555,896,367,449.52