Finding the Third Proportional to 102,300,209 and 219,155,938

Step by Step Solution

1. Step 1: Write the proportion equation
   102,300,209 : 219,155,938 = 219,155,938 : x
2. Step 2: Convert to fraction form
   102,300,209/219,155,938 = 219,155,938/x
3. Step 3: Cross multiply
   102,300,209x = 219,155,938 × 219,155,938
4. Step 4: Simplify right side
   102,300,209x = 48,029,325,160,659,840
5. Step 5: Solve for x
   x = 48,029,325,160,659,840/102,300,209
6. Step 6: Final answer
   x = 469,493,910.42