Finding the Third Proportional to 21,018,410 and 45,278,116

Step by Step Solution

1. Step 1: Write the proportion equation
   21,018,410 : 45,278,116 = 45,278,116 : x
2. Step 2: Convert to fraction form
   21,018,410/45,278,116 = 45,278,116/x
3. Step 3: Cross multiply
   21,018,410x = 45,278,116 × 45,278,116
4. Step 4: Simplify right side
   21,018,410x = 2,050,107,788,509,456
5. Step 5: Solve for x
   x = 2,050,107,788,509,456/21,018,410
6. Step 6: Final answer
   x = 97,538,671.50