Finding the Third Proportional to 838,829,856 and 1,258,244,892

Step by Step Solution

1. Step 1: Write the proportion equation
   838,829,856 : 1,258,244,892 = 1,258,244,892 : x
2. Step 2: Convert to fraction form
   838,829,856/1,258,244,892 = 1,258,244,892/x
3. Step 3: Cross multiply
   838,829,856x = 1,258,244,892 × 1,258,244,892
4. Step 4: Simplify right side
   838,829,856x = 1,583,180,208,244,091,648
5. Step 5: Solve for x
   x = 1,583,180,208,244,091,648/838,829,856
6. Step 6: Final answer
   x = 1,887,367,500.00