Finding the Third Proportional to 65,751,989.84 and 142,948,459.55

Step by Step Solution

1. Step 1: Write the proportion equation
   65,751,989.84 : 142,948,459.55 = 142,948,459.55 : x
2. Step 2: Convert to fraction form
   65,751,989.84/142,948,459.55 = 142,948,459.55/x
3. Step 3: Cross multiply
   65,751,989.84x = 142,948,459.55 × 142,948,459.55
4. Step 4: Simplify right side
   65,751,989.84x = 20,434,262,086,825,988
5. Step 5: Solve for x
   x = 20,434,262,086,825,988/65,751,989.84
6. Step 6: Final answer
   x = 310,777,850.80