Finding the Third Proportional to 62,987,212 and 90,071,826

Step by Step Solution

1. Step 1: Write the proportion equation
   62,987,212 : 90,071,826 = 90,071,826 : x
2. Step 2: Convert to fraction form
   62,987,212/90,071,826 = 90,071,826/x
3. Step 3: Cross multiply
   62,987,212x = 90,071,826 × 90,071,826
4. Step 4: Simplify right side
   62,987,212x = 8,112,933,838,974,276
5. Step 5: Solve for x
   x = 8,112,933,838,974,276/62,987,212
6. Step 6: Final answer
   x = 128,802,872.54