Finding the Third Proportional to 102,300,205.50 and 219,155,931

Step by Step Solution

1. Step 1: Write the proportion equation
   102,300,205.50 : 219,155,931 = 219,155,931 : x
2. Step 2: Convert to fraction form
   102,300,205.50/219,155,931 = 219,155,931/x
3. Step 3: Cross multiply
   102,300,205.50x = 219,155,931 × 219,155,931
4. Step 4: Simplify right side
   102,300,205.50x = 48,029,322,092,476,760
5. Step 5: Solve for x
   x = 48,029,322,092,476,760/102,300,205.50
6. Step 6: Final answer
   x = 469,493,896.50