Finding the Third Proportional to 42,836,407.88 and 65,258,991.56

Step by Step Solution

1. Step 1: Write the proportion equation
   42,836,407.88 : 65,258,991.56 = 65,258,991.56 : x
2. Step 2: Convert to fraction form
   42,836,407.88/65,258,991.56 = 65,258,991.56/x
3. Step 3: Cross multiply
   42,836,407.88x = 65,258,991.56 × 65,258,991.56
4. Step 4: Simplify right side
   42,836,407.88x = 4,258,735,979,754,446
5. Step 5: Solve for x
   x = 4,258,735,979,754,446/42,836,407.88
6. Step 6: Final answer
   x = 99,418,606.53