Finding the Third Proportional to 99,849,779,363 and 213,837,424,600.50

Step by Step Solution

1. Step 1: Write the proportion equation
   99,849,779,363 : 213,837,424,600.50 = 213,837,424,600.50 : x
2. Step 2: Convert to fraction form
   99,849,779,363/213,837,424,600.50 = 213,837,424,600.50/x
3. Step 3: Cross multiply
   99,849,779,363x = 213,837,424,600.50 × 213,837,424,600.50
4. Step 4: Simplify right side
   99,849,779,363x = 45,726,444,159,774,519,984,128
5. Step 5: Solve for x
   x = 45,726,444,159,774,519,984,128/99,849,779,363
6. Step 6: Final answer
   x = 457,952,380,581.01