Finding the Third Proportional to 65,078,172 and 86,368,403.25

Step by Step Solution

1. Step 1: Write the proportion equation
   65,078,172 : 86,368,403.25 = 86,368,403.25 : x
2. Step 2: Convert to fraction form
   65,078,172/86,368,403.25 = 86,368,403.25/x
3. Step 3: Cross multiply
   65,078,172x = 86,368,403.25 × 86,368,403.25
4. Step 4: Simplify right side
   65,078,172x = 7,459,501,079,954,611
5. Step 5: Solve for x
   x = 7,459,501,079,954,611/65,078,172
6. Step 6: Final answer
   x = 114,623,703.32