Finding the Third Proportional to 78,564,892.50 and 185,199,300

Step by Step Solution

1. Step 1: Write the proportion equation
   78,564,892.50 : 185,199,300 = 185,199,300 : x
2. Step 2: Convert to fraction form
   78,564,892.50/185,199,300 = 185,199,300/x
3. Step 3: Cross multiply
   78,564,892.50x = 185,199,300 × 185,199,300
4. Step 4: Simplify right side
   78,564,892.50x = 34,298,780,720,490,000
5. Step 5: Solve for x
   x = 34,298,780,720,490,000/78,564,892.50
6. Step 6: Final answer
   x = 436,566,252.80