Finding the Third Proportional to 146,209,378 and 321,113,060

Step by Step Solution

1. Step 1: Write the proportion equation
   146,209,378 : 321,113,060 = 321,113,060 : x
2. Step 2: Convert to fraction form
   146,209,378/321,113,060 = 321,113,060/x
3. Step 3: Cross multiply
   146,209,378x = 321,113,060 × 321,113,060
4. Step 4: Simplify right side
   146,209,378x = 103,113,597,302,563,600
5. Step 5: Solve for x
   x = 103,113,597,302,563,600/146,209,378
6. Step 6: Final answer
   x = 705,246,125.20