Finding the Third Proportional to 10,490,710,817 and 21,402,832,558

Step by Step Solution

1. Step 1: Write the proportion equation
   10,490,710,817 : 21,402,832,558 = 21,402,832,558 : x
2. Step 2: Convert to fraction form
   10,490,710,817/21,402,832,558 = 21,402,832,558/x
3. Step 3: Cross multiply
   10,490,710,817x = 21,402,832,558 × 21,402,832,558
4. Step 4: Simplify right side
   10,490,710,817x = 458,081,241,505,784,791,040
5. Step 5: Solve for x
   x = 458,081,241,505,784,791,040/10,490,710,817
6. Step 6: Final answer
   x = 43,665,415,003.48