Finding the Third Proportional to 215,329,374 and 472,346,978

Step by Step Solution

1. Step 1: Write the proportion equation
   215,329,374 : 472,346,978 = 472,346,978 : x
2. Step 2: Convert to fraction form
   215,329,374/472,346,978 = 472,346,978/x
3. Step 3: Cross multiply
   215,329,374x = 472,346,978 × 472,346,978
4. Step 4: Simplify right side
   215,329,374x = 223,111,667,625,732,480
5. Step 5: Solve for x
   x = 223,111,667,625,732,480/215,329,374
6. Step 6: Final answer
   x = 1,036,141,347.00