Finding the Third Proportional to 17,478,509 and 35,650,954

Step by Step Solution

1. Step 1: Write the proportion equation
   17,478,509 : 35,650,954 = 35,650,954 : x
2. Step 2: Convert to fraction form
   17,478,509/35,650,954 = 35,650,954/x
3. Step 3: Cross multiply
   17,478,509x = 35,650,954 × 35,650,954
4. Step 4: Simplify right side
   17,478,509x = 1,270,990,521,110,116
5. Step 5: Solve for x
   x = 1,270,990,521,110,116/17,478,509
6. Step 6: Final answer
   x = 72,717,330.82