Finding the Third Proportional to 259,717,135,978.50 and 558,520,807,848

Step by Step Solution

1. Step 1: Write the proportion equation
   259,717,135,978.50 : 558,520,807,848 = 558,520,807,848 : x
2. Step 2: Convert to fraction form
   259,717,135,978.50/558,520,807,848 = 558,520,807,848/x
3. Step 3: Cross multiply
   259,717,135,978.50x = 558,520,807,848 × 558,520,807,848
4. Step 4: Simplify right side
   259,717,135,978.50x = 311,945,492,799,182,516,256,768
5. Step 5: Solve for x
   x = 311,945,492,799,182,516,256,768/259,717,135,978.50
6. Step 6: Final answer
   x = 1,201,097,076,725.07