Finding the Third Proportional to 30,758,931 and 72,609,354

Step by Step Solution

1. Step 1: Write the proportion equation
   30,758,931 : 72,609,354 = 72,609,354 : x
2. Step 2: Convert to fraction form
   30,758,931/72,609,354 = 72,609,354/x
3. Step 3: Cross multiply
   30,758,931x = 72,609,354 × 72,609,354
4. Step 4: Simplify right side
   30,758,931x = 5,272,118,288,297,316
5. Step 5: Solve for x
   x = 5,272,118,288,297,316/30,758,931
6. Step 6: Final answer
   x = 171,401,219.64