Finding the Third Proportional to 30,758,916 and 72,609,312

Step by Step Solution

1. Step 1: Write the proportion equation
   30,758,916 : 72,609,312 = 72,609,312 : x
2. Step 2: Convert to fraction form
   30,758,916/72,609,312 = 72,609,312/x
3. Step 3: Cross multiply
   30,758,916x = 72,609,312 × 72,609,312
4. Step 4: Simplify right side
   30,758,916x = 5,272,112,189,113,344
5. Step 5: Solve for x
   x = 5,272,112,189,113,344/30,758,916
6. Step 6: Final answer
   x = 171,401,104.94