Finding the Third Proportional to 83,401,315.31 and 173,705,707.69

Step by Step Solution

1. Step 1: Write the proportion equation
   83,401,315.31 : 173,705,707.69 = 173,705,707.69 : x
2. Step 2: Convert to fraction form
   83,401,315.31/173,705,707.69 = 173,705,707.69/x
3. Step 3: Cross multiply
   83,401,315.31x = 173,705,707.69 × 173,705,707.69
4. Step 4: Simplify right side
   83,401,315.31x = 30,173,672,883,215,196
5. Step 5: Solve for x
   x = 30,173,672,883,215,196/83,401,315.31
6. Step 6: Final answer
   x = 361,788,933.07