Finding the Third Proportional to 58,422,942 and 90,820,413

Step by Step Solution

1. Step 1: Write the proportion equation
   58,422,942 : 90,820,413 = 90,820,413 : x
2. Step 2: Convert to fraction form
   58,422,942/90,820,413 = 90,820,413/x
3. Step 3: Cross multiply
   58,422,942x = 90,820,413 × 90,820,413
4. Step 4: Simplify right side
   58,422,942x = 8,248,347,417,490,569
5. Step 5: Solve for x
   x = 8,248,347,417,490,569/58,422,942
6. Step 6: Final answer
   x = 141,183,362.82