Finding the Third Proportional to 16,591,921 and 34,508,209

Step by Step Solution

1. Step 1: Write the proportion equation
   16,591,921 : 34,508,209 = 34,508,209 : x
2. Step 2: Convert to fraction form
   16,591,921/34,508,209 = 34,508,209/x
3. Step 3: Cross multiply
   16,591,921x = 34,508,209 × 34,508,209
4. Step 4: Simplify right side
   16,591,921x = 1,190,816,488,387,681
5. Step 5: Solve for x
   x = 1,190,816,488,387,681/16,591,921
6. Step 6: Final answer
   x = 71,770,862.96