Finding the Third Proportional to 910,591,389 and 1,959,290,730

Step by Step Solution

1. Step 1: Write the proportion equation
   910,591,389 : 1,959,290,730 = 1,959,290,730 : x
2. Step 2: Convert to fraction form
   910,591,389/1,959,290,730 = 1,959,290,730/x
3. Step 3: Cross multiply
   910,591,389x = 1,959,290,730 × 1,959,290,730
4. Step 4: Simplify right side
   910,591,389x = 3,838,820,164,663,932,928
5. Step 5: Solve for x
   x = 3,838,820,164,663,932,928/910,591,389
6. Step 6: Final answer
   x = 4,215,743,978.08