Finding the Third Proportional to 19,299,319,850 and 42,016,066,996

Step by Step Solution

1. Step 1: Write the proportion equation
   19,299,319,850 : 42,016,066,996 = 42,016,066,996 : x
2. Step 2: Convert to fraction form
   19,299,319,850/42,016,066,996 = 42,016,066,996/x
3. Step 3: Cross multiply
   19,299,319,850x = 42,016,066,996 × 42,016,066,996
4. Step 4: Simplify right side
   19,299,319,850x = 1,765,349,885,812,360,347,648
5. Step 5: Solve for x
   x = 1,765,349,885,812,360,347,648/19,299,319,850
6. Step 6: Final answer
   x = 91,472,129,563.80