Finding the Third Proportional to 54,508,775.63 and 83,783,763.56

Step by Step Solution

1. Step 1: Write the proportion equation
   54,508,775.63 : 83,783,763.56 = 83,783,763.56 : x
2. Step 2: Convert to fraction form
   54,508,775.63/83,783,763.56 = 83,783,763.56/x
3. Step 3: Cross multiply
   54,508,775.63x = 83,783,763.56 × 83,783,763.56
4. Step 4: Simplify right side
   54,508,775.63x = 7,019,719,036,696,903
5. Step 5: Solve for x
   x = 7,019,719,036,696,903/54,508,775.63
6. Step 6: Final answer
   x = 128,781,447.69