Finding the Third Proportional to 42,502,156.25 and 90,111,890.75

Step by Step Solution

1. Step 1: Write the proportion equation
   42,502,156.25 : 90,111,890.75 = 90,111,890.75 : x
2. Step 2: Convert to fraction form
   42,502,156.25/90,111,890.75 = 90,111,890.75/x
3. Step 3: Cross multiply
   42,502,156.25x = 90,111,890.75 × 90,111,890.75
4. Step 4: Simplify right side
   42,502,156.25x = 8,120,152,854,539,936
5. Step 5: Solve for x
   x = 8,120,152,854,539,936/42,502,156.25
6. Step 6: Final answer
   x = 191,052,726.99