Finding the Third Proportional to 99,849,779,362.12 and 213,837,424,598.24

Step by Step Solution

1. Step 1: Write the proportion equation
   99,849,779,362.12 : 213,837,424,598.24 = 213,837,424,598.24 : x
2. Step 2: Convert to fraction form
   99,849,779,362.12/213,837,424,598.24 = 213,837,424,598.24/x
3. Step 3: Cross multiply
   99,849,779,362.12x = 213,837,424,598.24 × 213,837,424,598.24
4. Step 4: Simplify right side
   99,849,779,362.12x = 45,726,444,158,807,976,181,760
5. Step 5: Solve for x
   x = 45,726,444,158,807,976,181,760/99,849,779,362.12
6. Step 6: Final answer
   x = 457,952,380,575.35