Finding the Third Proportional to 42,437 and 99,090

Step by Step Solution

1. Step 1: Write the proportion equation
   42,437 : 99,090 = 99,090 : x
2. Step 2: Convert to fraction form
   42,437/99,090 = 99,090/x
3. Step 3: Cross multiply
   42,437x = 99,090 × 99,090
4. Step 4: Simplify right side
   42,437x = 9,818,828,100
5. Step 5: Solve for x
   x = 9,818,828,100/42,437
6. Step 6: Final answer
   x = 231,374.23