Finding the Third Proportional to 10,490,710,815 and 21,402,832,554

Step by Step Solution

1. Step 1: Write the proportion equation
   10,490,710,815 : 21,402,832,554 = 21,402,832,554 : x
2. Step 2: Convert to fraction form
   10,490,710,815/21,402,832,554 = 21,402,832,554/x
3. Step 3: Cross multiply
   10,490,710,815x = 21,402,832,554 × 21,402,832,554
4. Step 4: Simplify right side
   10,490,710,815x = 458,081,241,334,562,160,640
5. Step 5: Solve for x
   x = 458,081,241,334,562,160,640/10,490,710,815
6. Step 6: Final answer
   x = 43,665,414,995.48