Finding the Third Proportional to 30,758,918 and 72,609,317

Step by Step Solution

1. Step 1: Write the proportion equation
   30,758,918 : 72,609,317 = 72,609,317 : x
2. Step 2: Convert to fraction form
   30,758,918/72,609,317 = 72,609,317/x
3. Step 3: Cross multiply
   30,758,918x = 72,609,317 × 72,609,317
4. Step 4: Simplify right side
   30,758,918x = 5,272,112,915,206,489
5. Step 5: Solve for x
   x = 5,272,112,915,206,489/30,758,918
6. Step 6: Final answer
   x = 171,401,117.40