Finding the Third Proportional to 71,290,358 and 152,812,321

Step by Step Solution

1. Step 1: Write the proportion equation
   71,290,358 : 152,812,321 = 152,812,321 : x
2. Step 2: Convert to fraction form
   71,290,358/152,812,321 = 152,812,321/x
3. Step 3: Cross multiply
   71,290,358x = 152,812,321 × 152,812,321
4. Step 4: Simplify right side
   71,290,358x = 23,351,605,449,407,040
5. Step 5: Solve for x
   x = 23,351,605,449,407,040/71,290,358
6. Step 6: Final answer
   x = 327,556,293.79