Finding the Third Proportional to 147,664,912 and 321,900,416

Step by Step Solution

1. Step 1: Write the proportion equation
   147,664,912 : 321,900,416 = 321,900,416 : x
2. Step 2: Convert to fraction form
   147,664,912/321,900,416 = 321,900,416/x
3. Step 3: Cross multiply
   147,664,912x = 321,900,416 × 321,900,416
4. Step 4: Simplify right side
   147,664,912x = 103,619,877,820,973,056
5. Step 5: Solve for x
   x = 103,619,877,820,973,056/147,664,912
6. Step 6: Final answer
   x = 701,723,086.53