Finding the Third Proportional to 42,712 and 99,776

Step by Step Solution

1. Step 1: Write the proportion equation
   42,712 : 99,776 = 99,776 : x
2. Step 2: Convert to fraction form
   42,712/99,776 = 99,776/x
3. Step 3: Cross multiply
   42,712x = 99,776 × 99,776
4. Step 4: Simplify right side
   42,712x = 9,955,250,176
5. Step 5: Solve for x
   x = 9,955,250,176/42,712
6. Step 6: Final answer
   x = 233,078.53